38918816008 has 8 divisors (see below), whose sum is σ = 72972780030. Its totient is φ = 19459408000.

The previous prime is 38918815939. The next prime is 38918816009. The reversal of 38918816008 is 80061881983.

It can be written as a sum of positive squares in only one way, i.e., 22421468644 + 16497347364 = 149738^2 + 128442^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×38918816008³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (38918816009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2432425993 + ... + 2432426008.

Almost surely, 2^38918816008 is an apocalyptic number.

It is an amenable number.

38918816008 is a deficient number, since it is larger than the sum of its proper divisors (34053964022).

38918816008 is a wasteful number, since it uses less digits than its factorization.

38918816008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4864852007 (or 4864852003 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 52.

The spelling of 38918816008 in words is "thirty-eight billion, nine hundred eighteen million, eight hundred sixteen thousand, eight".