10921714820 has 12 divisors (see below), whose sum is σ = 22935601164. Its totient is φ = 4368685920.

The previous prime is 10921714813. The next prime is 10921714829. The reversal of 10921714820 is 2841712901.

It can be written as a sum of positive squares in 2 ways, for example, as 1324377664 + 9597337156 = 36392^2 + 97966^2 .

It is not an unprimeable number, because it can be changed into a prime (10921714829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273042851 + ... + 273042890.

It is an arithmetic number, because the mean of its divisors is an integer number (1911300097).

Almost surely, 2^10921714820 is an apocalyptic number.

10921714820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10921714820 is an abundant number, since it is smaller than the sum of its proper divisors (12013886344).

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

10921714820 is a wasteful number, since it uses less digits than its factorization.

10921714820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546085750 (or 546085748 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 35.

The spelling of 10921714820 in words is "ten billion, nine hundred twenty-one million, seven hundred fourteen thousand, eight hundred twenty".