9957670864 has 10 divisors (see below), whose sum is σ = 19292987330. Its totient is φ = 4978835424.

The previous prime is 9957670829. The next prime is 9957670889. The reversal of 9957670864 is 4680767599.

It can be written as a sum of positive squares in only one way, i.e., 9524198464 + 433472400 = 97592^2 + 20820^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311177199 + ... + 311177230.

It is an arithmetic number, because the mean of its divisors is an integer number (1929298733).

Almost surely, 2^9957670864 is an apocalyptic number.

It is an amenable number.

9957670864 is a deficient number, since it is larger than the sum of its proper divisors (9335316466).

9957670864 is a wasteful number, since it uses less digits than its factorization.

9957670864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622354437 (or 622354431 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 61.

The square root of 9957670864 is about 99788.1298752512. The cubic root of 9957670864 is about 2151.3905454828.

The spelling of 9957670864 in words is "nine billion, nine hundred fifty-seven million, six hundred seventy thousand, eight hundred sixty-four".