79625962613 has 2 divisors, whose sum is σ = 79625962614. Its totient is φ = 79625962612.

The previous prime is 79625962573. The next prime is 79625962649. The reversal of 79625962613 is 31626952697.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55357619524 + 24268343089 = 235282^2 + 155783^2 .

It is a cyclic number.

It is not a de Polignac number, because 79625962613 - 2⁸ = 79625962357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79625962313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39812981306 + 39812981307.

It is an arithmetic number, because the mean of its divisors is an integer number (39812981307).

Almost surely, 2^79625962613 is an apocalyptic number.

It is an amenable number.

79625962613 is a deficient number, since it is larger than the sum of its proper divisors (1).

79625962613 is an equidigital number, since it uses as much as digits as its factorization.

79625962613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7348320, while the sum is 56.

The spelling of 79625962613 in words is "seventy-nine billion, six hundred twenty-five million, nine hundred sixty-two thousand, six hundred thirteen".