21463704045 has 48 divisors (see below), whose sum is σ = 42804028800. Its totient is φ = 9746105472.

The previous prime is 21463704023. The next prime is 21463704077. The reversal of 21463704045 is 54040736412.

21463704045 is a `hidden beast` number, since 2 + 14 + 637 + 0 + 4 + 0 + 4 + 5 = 666.

It is not a de Polignac number, because 21463704045 - 2⁷ = 21463703917 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 181719 + ... + 275588.

It is an arithmetic number, because the mean of its divisors is an integer number (891750600).

Almost surely, 2^21463704045 is an apocalyptic number.

It is an amenable number.

21463704045 is a deficient number, since it is larger than the sum of its proper divisors (21340324755).

21463704045 is a wasteful number, since it uses less digits than its factorization.

21463704045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457474 (or 457471 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The spelling of 21463704045 in words is "twenty-one billion, four hundred sixty-three million, seven hundred four thousand, forty-five".