87188979051 has 12 divisors (see below), whose sum is σ = 130282382880. Its totient is φ = 56121641520.

The previous prime is 87188979037. The next prime is 87188979089. The reversal of 87188979051 is 15097988178.

It is not a de Polignac number, because 87188979051 - 2²³ = 87180590443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87188979051.

It is not an unprimeable number, because it can be changed into a prime (87188979011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167028435 + ... + 167028956.

It is an arithmetic number, because the mean of its divisors is an integer number (10856865240).

Almost surely, 2^87188979051 is an apocalyptic number.

87188979051 is a deficient number, since it is larger than the sum of its proper divisors (43093403829).

87188979051 is a wasteful number, since it uses less digits than its factorization.

87188979051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334057426 (or 334057423 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 63.

The spelling of 87188979051 in words is "eighty-seven billion, one hundred eighty-eight million, nine hundred seventy-nine thousand, fifty-one".