80957442737 has 2 divisors, whose sum is σ = 80957442738. Its totient is φ = 80957442736.

The previous prime is 80957442701. The next prime is 80957442757. The reversal of 80957442737 is 73724475908.

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., 78893012641 + 2064430096 = 280879^2 + 45436^2 .

It is a cyclic number.

It is not a de Polignac number, because 80957442737 - 2²² = 80953248433 is a prime.

It is not a weakly prime, because it can be changed into another prime (80957442757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40478721368 + 40478721369.

It is an arithmetic number, because the mean of its divisors is an integer number (40478721369).

Almost surely, 2^80957442737 is an apocalyptic number.

It is an amenable number.

80957442737 is a deficient number, since it is larger than the sum of its proper divisors (1).

80957442737 is an equidigital number, since it uses as much as digits as its factorization.

80957442737 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11854080, while the sum is 56.

The spelling of 80957442737 in words is "eighty billion, nine hundred fifty-seven million, four hundred forty-two thousand, seven hundred thirty-seven".