21576456314140 has 96 divisors (see below), whose sum is σ = 55812222506880. Its totient is φ = 6823035841536.

The previous prime is 21576456314137. The next prime is 21576456314177. The reversal of 21576456314140 is 4141365467512.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2586327 + ... + 7059886.

It is an arithmetic number, because the mean of its divisors is an integer number (581377317780).

Almost surely, 2^{21576456314140} is an apocalyptic number.

21576456314140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21576456314140 is an abundant number, since it is smaller than the sum of its proper divisors (34235766192740).

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

21576456314140 is a wasteful number, since it uses less digits than its factorization.

21576456314140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9647471 (or 9647469 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 49.

The spelling of 21576456314140 in words is "twenty-one trillion, five hundred seventy-six billion, four hundred fifty-six million, three hundred fourteen thousand, one hundred forty".