9829816972 has 24 divisors (see below), whose sum is σ = 18112136000. Its totient is φ = 4655051856.

The previous prime is 9829816957. The next prime is 9829816979. The reversal of 9829816972 is 2796189289.

It is a self number, because there is not a number n which added to its sum of digits gives 9829816972.

It is not an unprimeable number, because it can be changed into a prime (9829816979) 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, 335779 + ... + 363877.

Almost surely, 2^9829816972 is an apocalyptic number.

It is an amenable number.

9829816972 is a deficient number, since it is larger than the sum of its proper divisors (8282319028).

9829816972 is a wasteful number, since it uses less digits than its factorization.

9829816972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32725 (or 32723 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 61.

The square root of 9829816972 is about 99145.4334399724. The cubic root of 9829816972 is about 2142.1430893656.

The spelling of 9829816972 in words is "nine billion, eight hundred twenty-nine million, eight hundred sixteen thousand, nine hundred seventy-two".