80739036613 has 2 divisors, whose sum is σ = 80739036614. Its totient is φ = 80739036612.

The previous prime is 80739036593. The next prime is 80739036647. The reversal of 80739036613 is 31663093708.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60625273284 + 20113763329 = 246222^2 + 141823^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80739036613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80739036713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40369518306 + 40369518307.

It is an arithmetic number, because the mean of its divisors is an integer number (40369518307).

Almost surely, 2^80739036613 is an apocalyptic number.

It is an amenable number.

80739036613 is a deficient number, since it is larger than the sum of its proper divisors (1).

80739036613 is an equidigital number, since it uses as much as digits as its factorization.

80739036613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 46.

The spelling of 80739036613 in words is "eighty billion, seven hundred thirty-nine million, thirty-six thousand, six hundred thirteen".