79507228913 has 4 divisors (see below), whose sum is σ = 90865404480. Its totient is φ = 68149053348.

The previous prime is 79507228883. The next prime is 79507228921. The reversal of 79507228913 is 31982270597.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 79507228913 - 2¹² = 79507224817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79507228973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5679087773 + ... + 5679087786.

It is an arithmetic number, because the mean of its divisors is an integer number (22716351120).

Almost surely, 2^79507228913 is an apocalyptic number.

It is an amenable number.

79507228913 is a deficient number, since it is larger than the sum of its proper divisors (11358175567).

79507228913 is a wasteful number, since it uses less digits than its factorization.

79507228913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11358175566.

The product of its (nonzero) digits is 1905120, while the sum is 53.

The spelling of 79507228913 in words is "seventy-nine billion, five hundred seven million, two hundred twenty-eight thousand, nine hundred thirteen".