38971111312 has 160 divisors (see below), whose sum is σ = 91514142720. Its totient is φ = 15717335040.

The previous prime is 38971111303. The next prime is 38971111339. The reversal of 38971111312 is 21311117983.

It is a super-2 number, since 2×38971111312² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50677264 + ... + 50678032.

It is an arithmetic number, because the mean of its divisors is an integer number (571963392).

Almost surely, 2^38971111312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38971111312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45757071360).

38971111312 is an abundant number, since it is smaller than the sum of its proper divisors (52543031408).

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

38971111312 is a wasteful number, since it uses less digits than its factorization.

38971111312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101 (or 1095 counting only the distinct ones).

The product of its digits is 9072, while the sum is 37.

The spelling of 38971111312 in words is "thirty-eight billion, nine hundred seventy-one million, one hundred eleven thousand, three hundred twelve".