9815490572 has 12 divisors (see below), whose sum is σ = 17178731976. Its totient is φ = 4907281440.

The previous prime is 9815490523. The next prime is 9815490667. The reversal of 9815490572 is 2750945189.

It is a self number, because there is not a number n which added to its sum of digits gives 9815490572.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65954 + ... + 154857.

It is an arithmetic number, because the mean of its divisors is an integer number (1431560998).

Almost surely, 2^9815490572 is an apocalyptic number.

It is an amenable number.

9815490572 is a deficient number, since it is larger than the sum of its proper divisors (7363241404).

9815490572 is a wasteful number, since it uses less digits than its factorization.

9815490572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231928 (or 231926 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 50.

The square root of 9815490572 is about 99073.1576765372. The cubic root of 9815490572 is about 2141.1018994098.

The spelling of 9815490572 in words is "nine billion, eight hundred fifteen million, four hundred ninety thousand, five hundred seventy-two".