9964724866 has 24 divisors (see below), whose sum is σ = 15151313520. Its totient is φ = 4915047072.

The previous prime is 9964724851. The next prime is 9964724899. The reversal of 9964724866 is 6684274699.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6718561 + ... + 6720043.

It is an arithmetic number, because the mean of its divisors is an integer number (631304730).

Almost surely, 2^9964724866 is an apocalyptic number.

9964724866 is a deficient number, since it is larger than the sum of its proper divisors (5186588654).

9964724866 is a wasteful number, since it uses less digits than its factorization.

9964724866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938 (or 1801 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 61.

The square root of 9964724866 is about 99823.4685131708. The cubic root of 9964724866 is about 2151.8984397249.

The spelling of 9964724866 in words is "nine billion, nine hundred sixty-four million, seven hundred twenty-four thousand, eight hundred sixty-six".