87879194385 has 32 divisors (see below), whose sum is σ = 147385865088. Its totient is φ = 44662356480.

The previous prime is 87879194339. The next prime is 87879194393. The reversal of 87879194385 is 58349197878.

It is not a de Polignac number, because 87879194385 - 2⁸ = 87879194129 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1635102 + ... + 1687991.

It is an arithmetic number, because the mean of its divisors is an integer number (4605808284).

Almost surely, 2^87879194385 is an apocalyptic number.

It is an amenable number.

87879194385 is a deficient number, since it is larger than the sum of its proper divisors (59506670703).

87879194385 is a wasteful number, since it uses less digits than its factorization.

87879194385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3323185.

The product of its digits is 121927680, while the sum is 69.

The spelling of 87879194385 in words is "eighty-seven billion, eight hundred seventy-nine million, one hundred ninety-four thousand, three hundred eighty-five".