79412158822499 has 16 divisors (see below), whose sum is σ = 84214220328288. Its totient is φ = 74624643205632.

The previous prime is 79412158822441. The next prime is 79412158822511. The reversal of 79412158822499 is 99422885121497.

It is a Cunningham number, because it is equal to 8911350²-1.

It is a cyclic number.

It is not a de Polignac number, because 79412158822499 - 2¹² = 79412158818403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79412158822099) 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, 151230869 + ... + 151755065.

It is an arithmetic number, because the mean of its divisors is an integer number (5263388770518).

Almost surely, 2^{79412158822499} is an apocalyptic number.

79412158822499 is a deficient number, since it is larger than the sum of its proper divisors (4802061505789).

79412158822499 is a wasteful number, since it uses less digits than its factorization.

79412158822499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538054.

The product of its digits is 209018880, while the sum is 71.

The spelling of 79412158822499 in words is "seventy-nine trillion, four hundred twelve billion, one hundred fifty-eight million, eight hundred twenty-two thousand, four hundred ninety-nine".