80085446377 has 2 divisors, whose sum is σ = 80085446378. Its totient is φ = 80085446376.

The previous prime is 80085446317. The next prime is 80085446381. The reversal of 80085446377 is 77364458008.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73407941721 + 6677504656 = 270939^2 + 81716^2 .

It is a cyclic number.

It is not a de Polignac number, because 80085446377 - 2²³ = 80077057769 is a prime.

It is a super-2 number, since 2×80085446377² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80085446317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40042723188 + 40042723189.

It is an arithmetic number, because the mean of its divisors is an integer number (40042723189).

Almost surely, 2^80085446377 is an apocalyptic number.

It is an amenable number.

80085446377 is a deficient number, since it is larger than the sum of its proper divisors (1).

80085446377 is an equidigital number, since it uses as much as digits as its factorization.

80085446377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4515840, while the sum is 52.

The spelling of 80085446377 in words is "eighty billion, eighty-five million, four hundred forty-six thousand, three hundred seventy-seven".