79935430198013 has 4 divisors (see below), whose sum is σ = 86084309444028. Its totient is φ = 73786550952000.

The previous prime is 79935430198007. The next prime is 79935430198031. The reversal of 79935430198013 is 31089103453997.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6795083000644 + 73140347197369 = 2606738^2 + 8552213^2 .

It is a cyclic number.

It is not a de Polignac number, because 79935430198013 - 2²² = 79935426003709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79935430198093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3074439622988 + ... + 3074439623013.

It is an arithmetic number, because the mean of its divisors is an integer number (21521077361007).

Almost surely, 2^{79935430198013} is an apocalyptic number.

It is an amenable number.

79935430198013 is a deficient number, since it is larger than the sum of its proper divisors (6148879246015).

79935430198013 is a wasteful number, since it uses less digits than its factorization.

79935430198013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6148879246014.

The product of its (nonzero) digits is 22044960, while the sum is 62.

The spelling of 79935430198013 in words is "seventy-nine trillion, nine hundred thirty-five billion, four hundred thirty million, one hundred ninety-eight thousand, thirteen".