6957568957 has 4 divisors (see below), whose sum is σ = 6977619936. Its totient is φ = 6937517980.

The previous prime is 6957568897. The next prime is 6957568997. The reversal of 6957568957 is 7598657596.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6957568957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6957568892 and 6957568901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6957568997) 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 3 ways as a sum of consecutive naturals, for example, 10024969 + ... + 10025662.

It is an arithmetic number, because the mean of its divisors is an integer number (1744404984).

Almost surely, 2^6957568957 is an apocalyptic number.

It is an amenable number.

6957568957 is a deficient number, since it is larger than the sum of its proper divisors (20050979).

6957568957 is a wasteful number, since it uses less digits than its factorization.

6957568957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20050978.

The product of its digits is 142884000, while the sum is 67.

The square root of 6957568957 is about 83412.0432371729. The cubic root of 6957568957 is about 1909.0582198599.

The spelling of 6957568957 in words is "six billion, nine hundred fifty-seven million, five hundred sixty-eight thousand, nine hundred fifty-seven".