79645158961 has 8 divisors (see below), whose sum is σ = 80488808064. Its totient is φ = 78801970560.

The previous prime is 79645158953. The next prime is 79645158979. The reversal of 79645158961 is 16985154697.

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

It is a cyclic number.

It is not a de Polignac number, because 79645158961 - 2³ = 79645158953 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79645158961.

It is not an unprimeable number, because it can be changed into a prime (79645153961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238116 + ... + 464746.

It is an arithmetic number, because the mean of its divisors is an integer number (10061101008).

Almost surely, 2^79645158961 is an apocalyptic number.

It is an amenable number.

79645158961 is a deficient number, since it is larger than the sum of its proper divisors (843649103).

79645158961 is a wasteful number, since it uses less digits than its factorization.

79645158961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230351.

The product of its digits is 16329600, while the sum is 61.

The spelling of 79645158961 in words is "seventy-nine billion, six hundred forty-five million, one hundred fifty-eight thousand, nine hundred sixty-one".