316844477377 has 2 divisors, whose sum is σ = 316844477378. Its totient is φ = 316844477376.

The previous prime is 316844477353. The next prime is 316844477381. The reversal of 316844477377 is 773774448613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 308112696241 + 8731781136 = 555079^2 + 93444^2 .

It is a cyclic number.

It is not a de Polignac number, because 316844477377 - 2¹¹ = 316844475329 is a prime.

It is not a weakly prime, because it can be changed into another prime (316844477317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158422238688 + 158422238689.

It is an arithmetic number, because the mean of its divisors is an integer number (158422238689).

Almost surely, 2^316844477377 is an apocalyptic number.

It is an amenable number.

316844477377 is a deficient number, since it is larger than the sum of its proper divisors (1).

316844477377 is an equidigital number, since it uses as much as digits as its factorization.

316844477377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 66382848, while the sum is 61.

The spelling of 316844477377 in words is "three hundred sixteen billion, eight hundred forty-four million, four hundred seventy-seven thousand, three hundred seventy-seven".