3763859964489 has 15 divisors (see below), whose sum is σ = 5622582326493. Its totient is φ = 2509228335924.

The previous prime is 3763859964463. The next prime is 3763859964497. The reversal of 3763859964489 is 9844699583673.

The square root of 3763859964489 is 1940067.

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

3763859964489 is a `hidden beast` number, since 3 + 7 + 6 + 3 + 85 + 9 + 96 + 448 + 9 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-3763859964489 is a prime.

It is a super-2 number, since 2×3763859964489² (a number of 26 digits) contains 22 as substring.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3763859964409) 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, 17352822 + ... + 17568384.

Almost surely, 2^{3763859964489} is an apocalyptic number.

3763859964489 is the 1940067-th square number.

3763859964489 is the 970034-th centered octagonal number.

It is an amenable number.

3763859964489 is a deficient number, since it is larger than the sum of its proper divisors (1858722362004).

3763859964489 is an frugal number, since it uses more digits than its factorization.

3763859964489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431138 (or 215566 counting only the distinct ones).

The product of its digits is 8465264640, while the sum is 81.

Multiplying 3763859964489 by its sum of digits (81), we get a square (304872657123609 = 17460603²).

3763859964489 divided by its sum of digits (81) gives a square (46467406969 = 215563²).

The spelling of 3763859964489 in words is "three trillion, seven hundred sixty-three billion, eight hundred fifty-nine million, nine hundred sixty-four thousand, four hundred eighty-nine".