87012692290 has 32 divisors (see below), whose sum is σ = 158413075200. Its totient is φ = 34409479104.

The previous prime is 87012692257. The next prime is 87012692323. The reversal of 87012692290 is 9229621078.

It is an interprime number because it is at equal distance from previous prime (87012692257) and next prime (87012692323).

It is a self number, because there is not a number n which added to its sum of digits gives 87012692290.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173179 + ... + 451681.

It is an arithmetic number, because the mean of its divisors is an integer number (4950408600).

Almost surely, 2^87012692290 is an apocalyptic number.

87012692290 is a deficient number, since it is larger than the sum of its proper divisors (71400382910).

87012692290 is a wasteful number, since it uses less digits than its factorization.

87012692290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278866.

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 87012692290 in words is "eighty-seven billion, twelve million, six hundred ninety-two thousand, two hundred ninety".