21374410457460 has 48 divisors (see below), whose sum is σ = 60285198568896. Its totient is φ = 5658238094592.

The previous prime is 21374410457359. The next prime is 21374410457483. The reversal of 21374410457460 is 6475401447312.

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 15 ways as a sum of consecutive naturals, for example, 1300138402 + ... + 1300154841.

It is an arithmetic number, because the mean of its divisors is an integer number (1255941636852).

Almost surely, 2^{21374410457460} is an apocalyptic number.

21374410457460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21374410457460 is an abundant number, since it is smaller than the sum of its proper divisors (38910788111436).

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

21374410457460 is a wasteful number, since it uses less digits than its factorization.

21374410457460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2600293392 (or 2600293390 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 48.

The spelling of 21374410457460 in words is "twenty-one trillion, three hundred seventy-four billion, four hundred ten million, four hundred fifty-seven thousand, four hundred sixty".