957318682321 has 4 divisors (see below), whose sum is σ = 968075072100. Its totient is φ = 946562292544.

The previous prime is 957318682319. The next prime is 957318682367. The reversal of 957318682321 is 123286813759.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 352907283600 + 604411398721 = 594060^2 + 777439^2 .

It is a cyclic number.

It is not a de Polignac number, because 957318682321 - 2¹ = 957318682319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (957318686321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5378194756 + ... + 5378194933.

It is an arithmetic number, because the mean of its divisors is an integer number (242018768025).

Almost surely, 2^957318682321 is an apocalyptic number.

It is an amenable number.

957318682321 is a deficient number, since it is larger than the sum of its proper divisors (10756389779).

957318682321 is a wasteful number, since it uses less digits than its factorization.

957318682321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10756389778.

The product of its digits is 4354560, while the sum is 55.

The spelling of 957318682321 in words is "nine hundred fifty-seven billion, three hundred eighteen million, six hundred eighty-two thousand, three hundred twenty-one".