79699899697 has 24 divisors (see below), whose sum is σ = 92360328480. Its totient is φ = 68532710400.

The previous prime is 79699899683. The next prime is 79699899703.

79699899697 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 79699899697 - 2¹⁹ = 79699375409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79699899497) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1446618 + ... + 1500700.

It is an arithmetic number, because the mean of its divisors is an integer number (3848347020).

Almost surely, 2^79699899697 is an apocalyptic number.

It is an amenable number.

79699899697 is a deficient number, since it is larger than the sum of its proper divisors (12660428783).

79699899697 is a wasteful number, since it uses less digits than its factorization.

79699899697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54765 (or 54754 counting only the distinct ones).

The product of its digits is 7499695392, while the sum is 88.

The spelling of 79699899697 in words is "seventy-nine billion, six hundred ninety-nine million, eight hundred ninety-nine thousand, six hundred ninety-seven".