3769938706689 has 15 divisors (see below), whose sum is σ = 5631662937747. Its totient is φ = 2513280821328.

The previous prime is 3769938706687. The next prime is 3769938706691. The reversal of 3769938706689 is 9866078399673.

The square root of 3769938706689 is 1941633.

It is a perfect power (a square), and thus also a powerful number.

3769938706689 is a `hidden beast` number, since 3 + 76 + 99 + 387 + 0 + 6 + 6 + 89 = 666.

It is an interprime number because it is at equal distance from previous prime (3769938706687) and next prime (3769938706691).

It can be written as a sum of positive squares in only one way, i.e., 3739176353025 + 30762353664 = 1933695^2 + 175392^2 .

It is not a de Polignac number, because 3769938706689 - 2¹ = 3769938706687 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is not an unprimeable number, because it can be changed into a prime (3769938706687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 17366829 + ... + 17582565.

Almost surely, 2^{3769938706689} is an apocalyptic number.

3769938706689 is the 1941633-rd square number.

3769938706689 is the 970817-th centered octagonal number.

It is an amenable number.

3769938706689 is a deficient number, since it is larger than the sum of its proper divisors (1861724231058).

3769938706689 is an frugal number, since it uses more digits than its factorization.

3769938706689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431486 (or 215740 counting only the distinct ones).

The product of its (nonzero) digits is 4444263936, while the sum is 81.

Multiplying 3769938706689 by its sum of digits (81), we get a square (305365035241809 = 17474697²).

3769938706689 divided by its sum of digits (81) gives a square (46542453169 = 215737²).

The spelling of 3769938706689 in words is "three trillion, seven hundred sixty-nine billion, nine hundred thirty-eight million, seven hundred six thousand, six hundred eighty-nine".