76615726042729 has 2 divisors, whose sum is σ = 76615726042730. Its totient is φ = 76615726042728.

The previous prime is 76615726042721. The next prime is 76615726042783. The reversal of 76615726042729 is 92724062751667.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75384851178025 + 1230874864704 = 8682445^2 + 1109448^2 .

It is a cyclic number.

It is not a de Polignac number, because 76615726042729 - 2³ = 76615726042721 is a prime.

It is not a weakly prime, because it can be changed into another prime (76615726042721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38307863021364 + 38307863021365.

It is an arithmetic number, because the mean of its divisors is an integer number (38307863021365).

Almost surely, 2^{76615726042729} is an apocalyptic number.

It is an amenable number.

76615726042729 is a deficient number, since it is larger than the sum of its proper divisors (1).

76615726042729 is an equidigital number, since it uses as much as digits as its factorization.

76615726042729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 106686720, while the sum is 64.

The spelling of 76615726042729 in words is "seventy-six trillion, six hundred fifteen billion, seven hundred twenty-six million, forty-two thousand, seven hundred twenty-nine".