3778064738 has 30 divisors (see below), whose sum is σ = 6618681771. Its totient is φ = 1617345156.

The previous prime is 3778064729. The next prime is 3778064743. The reversal of 3778064738 is 8374608773.

It can be written as a sum of positive squares in only one way, i.e., 1889032369 + 1889032369 = 43463^2 + 43463^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=43463.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3778064738.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 4258931 + ... + 4259817.

Almost surely, 2^3778064738 is an apocalyptic number.

3778064738 is a deficient number, since it is larger than the sum of its proper divisors (2840617033).

3778064738 is an frugal number, since it uses more digits than its factorization.

3778064738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1804 (or 896 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 53.

The square root of 3778064738 is about 61465.9640614218. The cubic root of 3778064738 is about 1557.4823429383.

The spelling of 3778064738 in words is "three billion, seven hundred seventy-eight million, sixty-four thousand, seven hundred thirty-eight".