377392566961 has 2 divisors, whose sum is σ = 377392566962. Its totient is φ = 377392566960.

The previous prime is 377392566953. The next prime is 377392567007. The reversal of 377392566961 is 169665293773.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 287665959025 + 89726607936 = 536345^2 + 299544^2 .

It is a cyclic number.

It is not a de Polignac number, because 377392566961 - 2³ = 377392566953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 377392566893 and 377392566902.

It is not a weakly prime, because it can be changed into another prime (377392566931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 188696283480 + 188696283481.

It is an arithmetic number, because the mean of its divisors is an integer number (188696283481).

Almost surely, 2^377392566961 is an apocalyptic number.

It is an amenable number.

377392566961 is a deficient number, since it is larger than the sum of its proper divisors (1).

377392566961 is an equidigital number, since it uses as much as digits as its factorization.

377392566961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77157360, while the sum is 64.

The spelling of 377392566961 in words is "three hundred seventy-seven billion, three hundred ninety-two million, five hundred sixty-six thousand, nine hundred sixty-one".