87806113087 has 32 divisors (see below), whose sum is σ = 119207923200. Its totient is φ = 62584099200.

The previous prime is 87806113079. The next prime is 87806113103. The reversal of 87806113087 is 78031160878.

It is not a de Polignac number, because 87806113087 - 2³ = 87806113079 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87806113087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87806113027) 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, 992364 + ... + 1077217.

It is an arithmetic number, because the mean of its divisors is an integer number (3725247600).

Almost surely, 2^87806113087 is an apocalyptic number.

87806113087 is a deficient number, since it is larger than the sum of its proper divisors (31401810113).

87806113087 is a wasteful number, since it uses less digits than its factorization.

87806113087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2069647.

The product of its (nonzero) digits is 451584, while the sum is 49.

The spelling of 87806113087 in words is "eighty-seven billion, eight hundred six million, one hundred thirteen thousand, eighty-seven".