38365757640 has 192 divisors, whose sum is σ = 147415507200. Its totient is φ = 8466909696.

The previous prime is 38365757609. The next prime is 38365757659. The reversal of 38365757640 is 4675756383.

38365757640 is a `hidden beast` number, since 3 + 8 + 3 + 6 + 575 + 7 + 64 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 189412 + ... + 335571.

It is an arithmetic number, because the mean of its divisors is an integer number (767789100).

Almost surely, 2^38365757640 is an apocalyptic number.

38365757640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38365757640 is an abundant number, since it is smaller than the sum of its proper divisors (109049749560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38365757640 is a wasteful number, since it uses less digits than its factorization.

38365757640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525036 (or 525029 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 54.

The spelling of 38365757640 in words is "thirty-eight billion, three hundred sixty-five million, seven hundred fifty-seven thousand, six hundred forty".