10921718892 has 48 divisors (see below), whose sum is σ = 29602049792. Its totient is φ = 3069334080.

The previous prime is 10921718849. The next prime is 10921718897. The reversal of 10921718892 is 29881712901.

10921718892 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (10921718897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1060618 + ... + 1070865.

Almost surely, 2^10921718892 is an apocalyptic number.

10921718892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10921718892 is an abundant number, since it is smaller than the sum of its proper divisors (18680330900).

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

10921718892 is a wasteful number, since it uses less digits than its factorization.

10921718892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131558 (or 2131556 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 48.

The spelling of 10921718892 in words is "ten billion, nine hundred twenty-one million, seven hundred eighteen thousand, eight hundred ninety-two".