79965157944 has 64 divisors (see below), whose sum is σ = 235841955840. Its totient is φ = 22110180480.

The previous prime is 79965157939. The next prime is 79965157949. The reversal of 79965157944 is 44975156997.

It is an interprime number because it is at equal distance from previous prime (79965157939) and next prime (79965157949).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79965157949) 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 15 ways as a sum of consecutive naturals, for example, 7671939 + ... + 7682354.

It is an arithmetic number, because the mean of its divisors is an integer number (3685030560).

Almost surely, 2^79965157944 is an apocalyptic number.

It is an amenable number.

79965157944 is an abundant number, since it is smaller than the sum of its proper divisors (155876797896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79965157944 is a wasteful number, since it uses less digits than its factorization.

79965157944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15354340 (or 15354336 counting only the distinct ones).

The product of its digits is 85730400, while the sum is 66.

The spelling of 79965157944 in words is "seventy-nine billion, nine hundred sixty-five million, one hundred fifty-seven thousand, nine hundred forty-four".