39012157872 has 160 divisors (see below), whose sum is σ = 119089252800. Its totient is φ = 12185137152.

The previous prime is 39012157861. The next prime is 39012157897. The reversal of 39012157872 is 27875121093.

39012157872 is a `hidden beast` number, since 3 + 9 + 0 + 1 + 2 + 1 + 578 + 72 = 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, 1670178 + ... + 1693374.

It is an arithmetic number, because the mean of its divisors is an integer number (744307830).

Almost surely, 2^39012157872 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 39012157872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59544626400).

39012157872 is an abundant number, since it is smaller than the sum of its proper divisors (80077094928).

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

39012157872 is a wasteful number, since it uses less digits than its factorization.

39012157872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23460 (or 23448 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The spelling of 39012157872 in words is "thirty-nine billion, twelve million, one hundred fifty-seven thousand, eight hundred seventy-two".