38812794912 has 36 divisors (see below), whose sum is σ = 110373886350. Its totient is φ = 12937598208.

The previous prime is 38812794859. The next prime is 38812794913. The reversal of 38812794912 is 21949721883.

38812794912 is a `hidden beast` number, since 3 + 8 + 81 + 2 + 79 + 491 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 21303153936 + 17509640976 = 145956^2 + 132324^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (38812794913) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67383037 + ... + 67383612.

Almost surely, 2^38812794912 is an apocalyptic number.

38812794912 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

38812794912 is an abundant number, since it is smaller than the sum of its proper divisors (71561091438).

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

38812794912 is a wasteful number, since it uses less digits than its factorization.

38812794912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134766665 (or 134766654 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The spelling of 38812794912 in words is "thirty-eight billion, eight hundred twelve million, seven hundred ninety-four thousand, nine hundred twelve".