79765656797 has 8 divisors (see below), whose sum is σ = 85217042400. Its totient is φ = 74439590544.

The previous prime is 79765656791. The next prime is 79765656809.

79765656797 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79765656797 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 (79765656791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31328522 + ... + 31331067.

It is an arithmetic number, because the mean of its divisors is an integer number (10652130300).

Almost surely, 2^79765656797 is an apocalyptic number.

It is an amenable number.

79765656797 is a deficient number, since it is larger than the sum of its proper divisors (5451385603).

79765656797 is a wasteful number, since it uses less digits than its factorization.

79765656797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62659675.

The product of its digits is 1050197400, while the sum is 74.

The spelling of 79765656797 in words is "seventy-nine billion, seven hundred sixty-five million, six hundred fifty-six thousand, seven hundred ninety-seven".