38879995536 has 120 divisors (see below), whose sum is σ = 110715064824. Its totient is φ = 12733562880.

The previous prime is 38879995499. The next prime is 38879995579. The reversal of 38879995536 is 63559997883.

38879995536 is a `hidden beast` number, since 3 + 8 + 87 + 9 + 9 + 9 + 5 + 536 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3475809936 + 35404185600 = 58956^2 + 188160^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10688310 + ... + 10691946.

Almost surely, 2^38879995536 is an apocalyptic number.

38879995536 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38879995536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55357532412).

38879995536 is an abundant number, since it is smaller than the sum of its proper divisors (71835069288).

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

38879995536 is a wasteful number, since it uses less digits than its factorization.

38879995536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4929 (or 4920 counting only the distinct ones).

The product of its digits is 440899200, while the sum is 72.

The spelling of 38879995536 in words is "thirty-eight billion, eight hundred seventy-nine million, nine hundred ninety-five thousand, five hundred thirty-six".