21623771419344 has 120 divisors (see below), whose sum is σ = 60630709636224. Its totient is φ = 7194329280000.

The previous prime is 21623771419331. The next prime is 21623771419361. The reversal of 21623771419344 is 44391417732612.

21623771419344 is a `hidden beast` number, since 2 + 1 + 6 + 2 + 377 + 141 + 93 + 44 = 666.

It is a super-3 number, since 3×21623771419344³ (a number of 41 digits) contains 333 as substring.

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 23 ways as a sum of consecutive naturals, for example, 426723129 + ... + 426773799.

Almost surely, 2^{21623771419344} is an apocalyptic number.

21623771419344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21623771419344 is an abundant number, since it is smaller than the sum of its proper divisors (39006938216880).

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

21623771419344 is a wasteful number, since it uses less digits than its factorization.

21623771419344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56217 (or 56208 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 54.

The spelling of 21623771419344 in words is "twenty-one trillion, six hundred twenty-three billion, seven hundred seventy-one million, four hundred nineteen thousand, three hundred forty-four".