79888086487091 has 16 divisors (see below), whose sum is σ = 84682787990400. Its totient is φ = 75103990241280.

The previous prime is 79888086487031. The next prime is 79888086487093. The reversal of 79888086487091 is 19078468088897.

It is a cyclic number.

It is not a de Polignac number, because 79888086487091 - 2¹⁰ = 79888086486067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79888086487093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 744081185 + ... + 744188541.

It is an arithmetic number, because the mean of its divisors is an integer number (5292674249400).

Almost surely, 2^{79888086487091} is an apocalyptic number.

79888086487091 is a deficient number, since it is larger than the sum of its proper divisors (4794701503309).

79888086487091 is a wasteful number, since it uses less digits than its factorization.

79888086487091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156334.

The product of its (nonzero) digits is 3121348608, while the sum is 83.

The spelling of 79888086487091 in words is "seventy-nine trillion, eight hundred eighty-eight billion, eighty-six million, four hundred eighty-seven thousand, ninety-one".