9717564970 has 16 divisors (see below), whose sum is σ = 17542031328. Its totient is φ = 3875822800.

The previous prime is 9717564949. The next prime is 9717564971. The reversal of 9717564970 is 794657179.

It is a super-2 number, since 2×9717564970² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9717564971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1396756 + ... + 1403695.

It is an arithmetic number, because the mean of its divisors is an integer number (1096376958).

Almost surely, 2^9717564970 is an apocalyptic number.

9717564970 is a deficient number, since it is larger than the sum of its proper divisors (7824466358).

9717564970 is a wasteful number, since it uses less digits than its factorization.

9717564970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2800805.

The product of its (nonzero) digits is 3333960, while the sum is 55.

The square root of 9717564970 is about 98577.7103101913. The cubic root of 9717564970 is about 2133.9577550138.

The spelling of 9717564970 in words is "nine billion, seven hundred seventeen million, five hundred sixty-four thousand, nine hundred seventy".