21614149400 has 48 divisors (see below), whose sum is σ = 51611101440. Its totient is φ = 8411990400.

The previous prime is 21614149373. The next prime is 21614149411. The reversal of 21614149400 is 494141612.

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, 1453016 + ... + 1467815.

It is an arithmetic number, because the mean of its divisors is an integer number (1075231280).

Almost surely, 2^21614149400 is an apocalyptic number.

21614149400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21614149400 is an abundant number, since it is smaller than the sum of its proper divisors (29996952040).

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

21614149400 is a wasteful number, since it uses less digits than its factorization.

21614149400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2920884 (or 2920875 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The spelling of 21614149400 in words is "twenty-one billion, six hundred fourteen million, one hundred forty-nine thousand, four hundred".