38508315390 has 24 divisors (see below), whose sum is σ = 100121620248. Its totient is φ = 10268884080.

The previous prime is 38508315383. The next prime is 38508315401. The reversal of 38508315390 is 9351380583.

38508315390 is a `hidden beast` number, since 3 + 8 + 508 + 3 + 1 + 53 + 90 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 213934996 + ... + 213935175.

It is an arithmetic number, because the mean of its divisors is an integer number (4171734177).

Almost surely, 2^38508315390 is an apocalyptic number.

38508315390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38508315390 is an abundant number, since it is smaller than the sum of its proper divisors (61613304858).

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

38508315390 is a wasteful number, since it uses less digits than its factorization.

38508315390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427870184 (or 427870181 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 38508315390 in words is "thirty-eight billion, five hundred eight million, three hundred fifteen thousand, three hundred ninety".