21452147593332 has 48 divisors (see below), whose sum is σ = 50642371321920. Its totient is φ = 7067015212032.

The previous prime is 21452147593309. The next prime is 21452147593337. The reversal of 21452147593332 is 23339574125412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21452147593337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12171678 + ... + 13822229.

It is an arithmetic number, because the mean of its divisors is an integer number (1055049402540).

Almost surely, 2^{21452147593332} is an apocalyptic number.

It is an amenable number.

21452147593332 is an abundant number, since it is smaller than the sum of its proper divisors (29190223728588).

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

21452147593332 is a wasteful number, since it uses less digits than its factorization.

21452147593332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25994720 (or 25994718 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 51.

The spelling of 21452147593332 in words is "twenty-one trillion, four hundred fifty-two billion, one hundred forty-seven million, five hundred ninety-three thousand, three hundred thirty-two".