9921833708 has 12 divisors (see below), whose sum is σ = 17478198192. Its totient is φ = 4928062800.

The previous prime is 9921833699. The next prime is 9921833723. The reversal of 9921833708 is 8073381299.

It is a happy number.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

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, 8212835 + ... + 8214042.

It is an arithmetic number, because the mean of its divisors is an integer number (1456516516).

Almost surely, 2^9921833708 is an apocalyptic number.

It is an amenable number.

9921833708 is a deficient number, since it is larger than the sum of its proper divisors (7556364484).

9921833708 is a wasteful number, since it uses less digits than its factorization.

9921833708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16427032 (or 16427030 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 9921833708 is about 99608.4017942262. The cubic root of 9921833708 is about 2148.8065276707.

The spelling of 9921833708 in words is "nine billion, nine hundred twenty-one million, eight hundred thirty-three thousand, seven hundred eight".