9949799564 has 6 divisors (see below), whose sum is σ = 17412149244. Its totient is φ = 4974899780.

The previous prime is 9949799543. The next prime is 9949799581. The reversal of 9949799564 is 4659979499.

It is a super-2 number, since 2×9949799564² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1243724942 + ... + 1243724949.

It is an arithmetic number, because the mean of its divisors is an integer number (2902024874).

Almost surely, 2^9949799564 is an apocalyptic number.

It is an amenable number.

9949799564 is a deficient number, since it is larger than the sum of its proper divisors (7462349680).

9949799564 is a wasteful number, since it uses less digits than its factorization.

9949799564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2487449895 (or 2487449893 counting only the distinct ones).

The product of its digits is 198404640, while the sum is 71.

The square root of 9949799564 is about 99748.6820163555. The cubic root of 9949799564 is about 2150.8235218408.

The spelling of 9949799564 in words is "nine billion, nine hundred forty-nine million, seven hundred ninety-nine thousand, five hundred sixty-four".