80708608637 has 2 divisors, whose sum is σ = 80708608638. Its totient is φ = 80708608636.

The previous prime is 80708608579. The next prime is 80708608649. The reversal of 80708608637 is 73680680708.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80525980441 + 182628196 = 283771^2 + 13514^2 .

It is a cyclic number.

It is not a de Polignac number, because 80708608637 - 2⁶ = 80708608573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80708608697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40354304318 + 40354304319.

It is an arithmetic number, because the mean of its divisors is an integer number (40354304319).

Almost surely, 2^80708608637 is an apocalyptic number.

It is an amenable number.

80708608637 is a deficient number, since it is larger than the sum of its proper divisors (1).

80708608637 is an equidigital number, since it uses as much as digits as its factorization.

80708608637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2709504, while the sum is 53.

The spelling of 80708608637 in words is "eighty billion, seven hundred eight million, six hundred eight thousand, six hundred thirty-seven".