87109625526 has 64 divisors (see below), whose sum is σ = 217281609216. Its totient is φ = 22618252800.

The previous prime is 87109625521. The next prime is 87109625579. The reversal of 87109625526 is 62552690178.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87109625521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1411696 + ... + 1472108.

It is an arithmetic number, because the mean of its divisors is an integer number (3395025144).

Almost surely, 2^87109625526 is an apocalyptic number.

87109625526 is an abundant number, since it is smaller than the sum of its proper divisors (130171983690).

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

87109625526 is a wasteful number, since it uses less digits than its factorization.

87109625526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63557.

The product of its (nonzero) digits is 1814400, while the sum is 51.

The spelling of 87109625526 in words is "eighty-seven billion, one hundred nine million, six hundred twenty-five thousand, five hundred twenty-six".