79959999999 has 16 divisors (see below), whose sum is σ = 116387026560. Its totient is φ = 48426617760.

The previous prime is 79959999979. The next prime is 79960000027. The reversal of 79959999999 is 99999995997.

It is not a de Polignac number, because 79959999999 - 2²⁴ = 79943222783 is a prime.

79959999999 is a modest number, since divided by 999999 gives 79959 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79959999979) 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, 801904 + ... + 896085.

It is an arithmetic number, because the mean of its divisors is an integer number (7274189160).

Almost surely, 2^79959999999 is an apocalyptic number.

79959999999 is a deficient number, since it is larger than the sum of its proper divisors (36427026561).

79959999999 is a wasteful number, since it uses less digits than its factorization.

79959999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1699430.

The product of its digits is 13559717115, while the sum is 93.

The spelling of 79959999999 in words is "seventy-nine billion, nine hundred fifty-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine".