38915914818 has 16 divisors (see below), whose sum is σ = 84907450656. Its totient is φ = 11792701440.

The previous prime is 38915914781. The next prime is 38915914819. The reversal of 38915914818 is 81841951983.

It is a super-2 number, since 2×38915914818² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38915914819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294817471 + ... + 294817602.

It is an arithmetic number, because the mean of its divisors is an integer number (5306715666).

Almost surely, 2^38915914818 is an apocalyptic number.

38915914818 is an abundant number, since it is smaller than the sum of its proper divisors (45991535838).

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

38915914818 is a wasteful number, since it uses less digits than its factorization.

38915914818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589635089.

The product of its digits is 2488320, while the sum is 57.

The spelling of 38915914818 in words is "thirty-eight billion, nine hundred fifteen million, nine hundred fourteen thousand, eight hundred eighteen".