79567209013 has 4 divisors (see below), whose sum is σ = 79571334240. Its totient is φ = 79563083788.

The previous prime is 79567209011. The next prime is 79567209023. The reversal of 79567209013 is 31090276597.

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 79567209013 - 2¹ = 79567209011 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 (79567209011) 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, 2033545 + ... + 2072302.

It is an arithmetic number, because the mean of its divisors is an integer number (19892833560).

Almost surely, 2^79567209013 is an apocalyptic number.

It is an amenable number.

79567209013 is a deficient number, since it is larger than the sum of its proper divisors (4125227).

79567209013 is a wasteful number, since it uses less digits than its factorization.

79567209013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4125226.

The product of its (nonzero) digits is 714420, while the sum is 49.

The spelling of 79567209013 in words is "seventy-nine billion, five hundred sixty-seven million, two hundred nine thousand, thirteen".