313977672647 has 2 divisors, whose sum is σ = 313977672648. Its totient is φ = 313977672646.

The previous prime is 313977672583. The next prime is 313977672677. The reversal of 313977672647 is 746276779313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 313977672647 - 2⁶ = 313977672583 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 313977672647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313977672677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156988836323 + 156988836324.

It is an arithmetic number, because the mean of its divisors is an integer number (156988836324).

Almost surely, 2^313977672647 is an apocalyptic number.

313977672647 is a deficient number, since it is larger than the sum of its proper divisors (1).

313977672647 is an equidigital number, since it uses as much as digits as its factorization.

313977672647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56010528, while the sum is 62.

The spelling of 313977672647 in words is "three hundred thirteen billion, nine hundred seventy-seven million, six hundred seventy-two thousand, six hundred forty-seven".