38517623545 has 16 divisors (see below), whose sum is σ = 46837301760. Its totient is φ = 30403848384.

The previous prime is 38517623531. The next prime is 38517623581. The reversal of 38517623545 is 54532671583.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38517623545 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 577887 + ... + 641083.

It is an arithmetic number, because the mean of its divisors is an integer number (2927331360).

Almost surely, 2^38517623545 is an apocalyptic number.

It is an amenable number.

38517623545 is a deficient number, since it is larger than the sum of its proper divisors (8319678215).

38517623545 is a wasteful number, since it uses less digits than its factorization.

38517623545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64824.

The product of its digits is 3024000, while the sum is 49.

The spelling of 38517623545 in words is "thirty-eight billion, five hundred seventeen million, six hundred twenty-three thousand, five hundred forty-five".