87125871272 has 64 divisors (see below), whose sum is σ = 178830720000. Its totient is φ = 39465455040.

The previous prime is 87125871271. The next prime is 87125871293. The reversal of 87125871272 is 27217852178.

It is a super-2 number, since 2×87125871272² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87125871272.

It is not an unprimeable number, because it can be changed into a prime (87125871271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43583729 + ... + 43585727.

It is an arithmetic number, because the mean of its divisors is an integer number (2794230000).

Almost surely, 2^87125871272 is an apocalyptic number.

It is an amenable number.

87125871272 is an abundant number, since it is smaller than the sum of its proper divisors (91704848728).

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

87125871272 is a wasteful number, since it uses less digits than its factorization.

87125871272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3486 (or 3482 counting only the distinct ones).

The product of its digits is 878080, while the sum is 50.

The spelling of 87125871272 in words is "eighty-seven billion, one hundred twenty-five million, eight hundred seventy-one thousand, two hundred seventy-two".