79401680539073 has 16 divisors (see below), whose sum is σ = 82123230404160. Its totient is φ = 76721948041536.

The previous prime is 79401680539067. The next prime is 79401680539177. The reversal of 79401680539073 is 37093508610497.

It is a cyclic number.

It is not a de Polignac number, because 79401680539073 - 2¹⁶ = 79401680473537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79401680538997 and 79401680539015.

It is not an unprimeable number, because it can be changed into a prime (79401680539273) 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, 8908190 + ... + 15432407.

It is an arithmetic number, because the mean of its divisors is an integer number (5132701900260).

Almost surely, 2^{79401680539073} is an apocalyptic number.

It is an amenable number.

79401680539073 is a deficient number, since it is larger than the sum of its proper divisors (2721549865087).

79401680539073 is a wasteful number, since it uses less digits than its factorization.

79401680539073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24341456.

The product of its (nonzero) digits is 34292160, while the sum is 62.

The spelling of 79401680539073 in words is "seventy-nine trillion, four hundred one billion, six hundred eighty million, five hundred thirty-nine thousand, seventy-three".