21124440662328 has 96 divisors (see below), whose sum is σ = 57299585279040. Its totient is φ = 7030707552000.

The previous prime is 21124440662321. The next prime is 21124440662329. The reversal of 21124440662328 is 82326604442112.

21124440662328 is a `hidden beast` number, since 2 + 1 + 1 + 2 + 4 + 4 + 406 + 6 + 232 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21124440662321) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 292655650 + ... + 292727822.

It is an arithmetic number, because the mean of its divisors is an integer number (596870679990).

Almost surely, 2^{21124440662328} is an apocalyptic number.

It is an amenable number.

21124440662328 is an abundant number, since it is smaller than the sum of its proper divisors (36175144616712).

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

21124440662328 is a wasteful number, since it uses less digits than its factorization.

21124440662328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78349 (or 78342 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 45.

The spelling of 21124440662328 in words is "twenty-one trillion, one hundred twenty-four billion, four hundred forty million, six hundred sixty-two thousand, three hundred twenty-eight".