79614155851813 has 4 divisors (see below), whose sum is σ = 86851806383808. Its totient is φ = 72376505319820.

The previous prime is 79614155851807. The next prime is 79614155851823. The reversal of 79614155851813 is 31815855141697.

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 79614155851813 - 2⁵ = 79614155851781 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 (79614155851823) 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, 3618825265981 + ... + 3618825266002.

It is an arithmetic number, because the mean of its divisors is an integer number (21712951595952).

Almost surely, 2^{79614155851813} is an apocalyptic number.

It is an amenable number.

79614155851813 is a deficient number, since it is larger than the sum of its proper divisors (7237650531995).

79614155851813 is a wasteful number, since it uses less digits than its factorization.

79614155851813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7237650531994.

The product of its digits is 36288000, while the sum is 64.

The spelling of 79614155851813 in words is "seventy-nine trillion, six hundred fourteen billion, one hundred fifty-five million, eight hundred fifty-one thousand, eight hundred thirteen".