21700460704 has 96 divisors (see below), whose sum is σ = 46760958720. Its totient is φ = 9852890112.

The previous prime is 21700460699. The next prime is 21700460723. The reversal of 21700460704 is 40706400712.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10416847 + ... + 10418929.

It is an arithmetic number, because the mean of its divisors is an integer number (487093320).

Almost surely, 2^21700460704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21700460704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23380479360).

21700460704 is an abundant number, since it is smaller than the sum of its proper divisors (25060498016).

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

21700460704 is a wasteful number, since it uses less digits than its factorization.

21700460704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2502 (or 2494 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The spelling of 21700460704 in words is "twenty-one billion, seven hundred million, four hundred sixty thousand, seven hundred four".