323374837657 has 2 divisors, whose sum is σ = 323374837658. Its totient is φ = 323374837656.

The previous prime is 323374837637. The next prime is 323374837663. The reversal of 323374837657 is 756738473323.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193638721936 + 129736115721 = 440044^2 + 360189^2 .

It is a cyclic number.

It is not a de Polignac number, because 323374837657 - 2¹⁹ = 323374313369 is a prime.

It is a super-2 number, since 2×323374837657² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (323374837637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161687418828 + 161687418829.

It is an arithmetic number, because the mean of its divisors is an integer number (161687418829).

Almost surely, 2^323374837657 is an apocalyptic number.

It is an amenable number.

323374837657 is a deficient number, since it is larger than the sum of its proper divisors (1).

323374837657 is an equidigital number, since it uses as much as digits as its factorization.

323374837657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53343360, while the sum is 58.

The spelling of 323374837657 in words is "three hundred twenty-three billion, three hundred seventy-four million, eight hundred thirty-seven thousand, six hundred fifty-seven".