76614720613 has 2 divisors, whose sum is σ = 76614720614. Its totient is φ = 76614720612.

The previous prime is 76614720583. The next prime is 76614720697. The reversal of 76614720613 is 31602741667.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57009680289 + 19605040324 = 238767^2 + 140018^2 .

It is a cyclic number.

It is not a de Polignac number, because 76614720613 - 2³³ = 68024786021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 76614720613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76614721613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38307360306 + 38307360307.

It is an arithmetic number, because the mean of its divisors is an integer number (38307360307).

Almost surely, 2^76614720613 is an apocalyptic number.

It is an amenable number.

76614720613 is a deficient number, since it is larger than the sum of its proper divisors (1).

76614720613 is an equidigital number, since it uses as much as digits as its factorization.

76614720613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 43.

It can be divided in two parts, 7661 and 4720613, that added together give a palindrome (4728274).

The spelling of 76614720613 in words is "seventy-six billion, six hundred fourteen million, seven hundred twenty thousand, six hundred thirteen".