87899374079 has 4 divisors (see below), whose sum is σ = 95890226280. Its totient is φ = 79908521880.

The previous prime is 87899374061. The next prime is 87899374117. The reversal of 87899374079 is 97047399878.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 87899374079 - 2²⁴ = 87882596863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87898374079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3995426084 + ... + 3995426105.

It is an arithmetic number, because the mean of its divisors is an integer number (23972556570).

Almost surely, 2^87899374079 is an apocalyptic number.

87899374079 is a deficient number, since it is larger than the sum of its proper divisors (7990852201).

87899374079 is a wasteful number, since it uses less digits than its factorization.

87899374079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7990852200.

The product of its (nonzero) digits is 192036096, while the sum is 71.

The spelling of 87899374079 in words is "eighty-seven billion, eight hundred ninety-nine million, three hundred seventy-four thousand, seventy-nine".