79615810253 has 32 divisors (see below), whose sum is σ = 94701868800. Its totient is φ = 65521612800.

The previous prime is 79615810231. The next prime is 79615810259. The reversal of 79615810253 is 35201851697.

It is not a de Polignac number, because 79615810253 - 2¹² = 79615806157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79615810198 and 79615810207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79615810259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4341203 + ... + 4359503.

It is an arithmetic number, because the mean of its divisors is an integer number (2959433400).

Almost surely, 2^79615810253 is an apocalyptic number.

It is an amenable number.

79615810253 is a deficient number, since it is larger than the sum of its proper divisors (15086058547).

79615810253 is a wasteful number, since it uses less digits than its factorization.

79615810253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18597.

The product of its (nonzero) digits is 453600, while the sum is 47.

The spelling of 79615810253 in words is "seventy-nine billion, six hundred fifteen million, eight hundred ten thousand, two hundred fifty-three".