38981857008 has 40 divisors (see below), whose sum is σ = 102603196368. Its totient is φ = 12748782592.

The previous prime is 38981857003. The next prime is 38981857009. The reversal of 38981857008 is 80075818983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38981857003) 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, 7658985 + ... + 7664072.

Almost surely, 2^38981857008 is an apocalyptic number.

It is an amenable number.

38981857008 is an abundant number, since it is smaller than the sum of its proper divisors (63621339360).

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

38981857008 is a wasteful number, since it uses less digits than its factorization.

38981857008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15323121 (or 15323115 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 57.

The spelling of 38981857008 in words is "thirty-eight billion, nine hundred eighty-one million, eight hundred fifty-seven thousand, eight".