79725031760731 has 16 divisors (see below), whose sum is σ = 91277664629760. Its totient is φ = 68213255273280.

The previous prime is 79725031760669. The next prime is 79725031760747. The reversal of 79725031760731 is 13706713052797.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 79725031760731 - 2⁹ = 79725031760219 is a prime.

It is a super-2 number, since 2×79725031760731² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (79725031764731) 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, 45619215 + ... + 47334583.

It is an arithmetic number, because the mean of its divisors is an integer number (5704854039360).

Almost surely, 2^{79725031760731} is an apocalyptic number.

79725031760731 is a deficient number, since it is larger than the sum of its proper divisors (11552632869029).

79725031760731 is a wasteful number, since it uses less digits than its factorization.

79725031760731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1727274.

The product of its (nonzero) digits is 11668860, while the sum is 58.

The spelling of 79725031760731 in words is "seventy-nine trillion, seven hundred twenty-five billion, thirty-one million, seven hundred sixty thousand, seven hundred thirty-one".