38936719872 has 320 divisors, whose sum is σ = 121212241920. Its totient is φ = 12317184000.

The previous prime is 38936719867. The next prime is 38936719883. The reversal of 38936719872 is 27891763983.

38936719872 is a `hidden beast` number, since 3 + 89 + 367 + 198 + 7 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48010347 + ... + 48011157.

It is an arithmetic number, because the mean of its divisors is an integer number (378788256).

Almost surely, 2^38936719872 is an apocalyptic number.

38936719872 is a gapful number since it is divisible by the number (32) 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 38936719872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60606120960).

38936719872 is an abundant number, since it is smaller than the sum of its proper divisors (82275522048).

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

38936719872 is a wasteful number, since it uses less digits than its factorization.

38936719872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012 (or 990 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 63.

The spelling of 38936719872 in words is "thirty-eight billion, nine hundred thirty-six million, seven hundred nineteen thousand, eight hundred seventy-two".