21414674800 has 60 divisors (see below), whose sum is σ = 51841621656. Its totient is φ = 8500460800.

The previous prime is 21414674777. The next prime is 21414674891. The reversal of 21414674800 is 847641412.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 21414674800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 151939 + ... + 256738.

Almost surely, 2^21414674800 is an apocalyptic number.

21414674800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21414674800 is an abundant number, since it is smaller than the sum of its proper divisors (30426946856).

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

21414674800 is a wasteful number, since it uses less digits than its factorization.

21414674800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408826 (or 408815 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The spelling of 21414674800 in words is "twenty-one billion, four hundred fourteen million, six hundred seventy-four thousand, eight hundred".