87258872860 has 24 divisors (see below), whose sum is σ = 183302703360. Its totient is φ = 34892297664.

The previous prime is 87258872809. The next prime is 87258872891. The reversal of 87258872860 is 6827885278.

It is a super-2 number, since 2×87258872860² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 639484 + ... + 763843.

It is an arithmetic number, because the mean of its divisors is an integer number (7637612640).

Almost surely, 2^87258872860 is an apocalyptic number.

It is an amenable number.

87258872860 is an abundant number, since it is smaller than the sum of its proper divisors (96043830500).

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

87258872860 is a wasteful number, since it uses less digits than its factorization.

87258872860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406445 (or 1406443 counting only the distinct ones).

The product of its (nonzero) digits is 24084480, while the sum is 61.

The spelling of 87258872860 in words is "eighty-seven billion, two hundred fifty-eight million, eight hundred seventy-two thousand, eight hundred sixty".