87571618026 has 16 divisors (see below), whose sum is σ = 177360240000. Its totient is φ = 28821038688.

The previous prime is 87571618007. The next prime is 87571618073. The reversal of 87571618026 is 62081617578.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 87571618026.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92374651 + ... + 92375598.

It is an arithmetic number, because the mean of its divisors is an integer number (11085015000).

Almost surely, 2^87571618026 is an apocalyptic number.

87571618026 is an abundant number, since it is smaller than the sum of its proper divisors (89788621974).

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

87571618026 is a wasteful number, since it uses less digits than its factorization.

87571618026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184750333.

The product of its (nonzero) digits is 1128960, while the sum is 51.

The spelling of 87571618026 in words is "eighty-seven billion, five hundred seventy-one million, six hundred eighteen thousand, twenty-six".