323611357257 has 6 divisors (see below), whose sum is σ = 467438627162. Its totient is φ = 215740904832.

The previous prime is 323611357241. The next prime is 323611357291. The reversal of 323611357257 is 752753116323.

323611357257 is a `hidden beast` number, since 3 + 2 + 3 + 61 + 13 + 572 + 5 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 320051564361 + 3559792896 = 565731^2 + 59664^2 .

It is not a de Polignac number, because 323611357257 - 2⁴ = 323611357241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (323611357057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17978408728 + ... + 17978408745.

Almost surely, 2^323611357257 is an apocalyptic number.

It is an amenable number.

323611357257 is a deficient number, since it is larger than the sum of its proper divisors (143827269905).

323611357257 is a wasteful number, since it uses less digits than its factorization.

323611357257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35956817479 (or 35956817476 counting only the distinct ones).

The product of its digits is 793800, while the sum is 45.

The spelling of 323611357257 in words is "three hundred twenty-three billion, six hundred eleven million, three hundred fifty-seven thousand, two hundred fifty-seven".