79801620051 has 32 divisors (see below), whose sum is σ = 108352954368. Its totient is φ = 52235850240.

The previous prime is 79801620043. The next prime is 79801620061. The reversal of 79801620051 is 15002610897.

It is not a de Polignac number, because 79801620051 - 2³ = 79801620043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79801619991 and 79801620009.

It is not an unprimeable number, because it can be changed into a prime (79801620061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45678360 + ... + 45680106.

It is an arithmetic number, because the mean of its divisors is an integer number (3386029824).

Almost surely, 2^79801620051 is an apocalyptic number.

79801620051 is a deficient number, since it is larger than the sum of its proper divisors (28551334317).

79801620051 is a wasteful number, since it uses less digits than its factorization.

79801620051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3051.

The product of its (nonzero) digits is 30240, while the sum is 39.

The spelling of 79801620051 in words is "seventy-nine billion, eight hundred one million, six hundred twenty thousand, fifty-one".