21343108346328 has 64 divisors (see below), whose sum is σ = 56166614784000. Its totient is φ = 6739864129152.

The previous prime is 21343108346303. The next prime is 21343108346363. The reversal of 21343108346328 is 82364380134312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74179401 + ... + 74466567.

It is an arithmetic number, because the mean of its divisors is an integer number (877603356000).

Almost surely, 2^{21343108346328} is an apocalyptic number.

It is an amenable number.

21343108346328 is an abundant number, since it is smaller than the sum of its proper divisors (34823506437672).

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

21343108346328 is a wasteful number, since it uses less digits than its factorization.

21343108346328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450184 (or 450180 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 48.

The spelling of 21343108346328 in words is "twenty-one trillion, three hundred forty-three billion, one hundred eight million, three hundred forty-six thousand, three hundred twenty-eight".