38913724017 has 72 divisors (see below), whose sum is σ = 66814488000. Its totient is φ = 21755055168.

The previous prime is 38913723983. The next prime is 38913724039. The reversal of 38913724017 is 71042731983.

38913724017 is a `hidden beast` number, since 389 + 13 + 7 + 240 + 17 = 666.

It is not a de Polignac number, because 38913724017 - 2¹² = 38913719921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38913724417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4398084 + ... + 4406922.

It is an arithmetic number, because the mean of its divisors is an integer number (927979000).

Almost surely, 2^38913724017 is an apocalyptic number.

It is an amenable number.

38913724017 is a deficient number, since it is larger than the sum of its proper divisors (27900763983).

38913724017 is a wasteful number, since it uses less digits than its factorization.

38913724017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9075 (or 9065 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The spelling of 38913724017 in words is "thirty-eight billion, nine hundred thirteen million, seven hundred twenty-four thousand, seventeen".