21460477296 has 40 divisors (see below), whose sum is σ = 55444823824. Its totient is φ = 7152814080.

The previous prime is 21460477279. The next prime is 21460477327. The reversal of 21460477296 is 69277406412.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 933330 + ... + 956046.

Almost surely, 2^21460477296 is an apocalyptic number.

It is an amenable number.

21460477296 is an abundant number, since it is smaller than the sum of its proper divisors (33984346528).

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

21460477296 is a wasteful number, since it uses less digits than its factorization.

21460477296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42409 (or 42403 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 48.

The spelling of 21460477296 in words is "twenty-one billion, four hundred sixty million, four hundred seventy-seven thousand, two hundred ninety-six".