79280766486985 has 16 divisors (see below), whose sum is σ = 110946845232000. Its totient is φ = 54363954161328.

The previous prime is 79280766486953. The next prime is 79280766487009. The reversal of 79280766486985 is 58968466708297.

It is not a de Polignac number, because 79280766486985 - 2⁵ = 79280766486953 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23113924375 + ... + 23113927804.

It is an arithmetic number, because the mean of its divisors is an integer number (6934177827000).

Almost surely, 2^{79280766486985} is an apocalyptic number.

It is an amenable number.

79280766486985 is a deficient number, since it is larger than the sum of its proper divisors (31666078745015).

79280766486985 is an equidigital number, since it uses as much as digits as its factorization.

79280766486985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46227852205 (or 46227852191 counting only the distinct ones).

The product of its (nonzero) digits is 17557585920, while the sum is 85.

The spelling of 79280766486985 in words is "seventy-nine trillion, two hundred eighty billion, seven hundred sixty-six million, four hundred eighty-six thousand, nine hundred eighty-five".