10021693968 has 120 divisors (see below), whose sum is σ = 32950182720. Its totient is φ = 2803265280.

The previous prime is 10021693939. The next prime is 10021693973. The reversal of 10021693968 is 86939612001.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 222748 + ... + 263931.

It is an arithmetic number, because the mean of its divisors is an integer number (274584856).

Almost surely, 2^10021693968 is an apocalyptic number.

10021693968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

10021693968 is an abundant number, since it is smaller than the sum of its proper divisors (22928488752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10021693968 is a wasteful number, since it uses less digits than its factorization.

10021693968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486717 (or 486708 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The spelling of 10021693968 in words is "ten billion, twenty-one million, six hundred ninety-three thousand, nine hundred sixty-eight".