21624026140434 has 8 divisors (see below), whose sum is σ = 43248052280880. Its totient is φ = 7208008713476.

The previous prime is 21624026140393. The next prime is 21624026140481. The reversal of 21624026140434 is 43404162042612.

It is a sphenic number, since it is the product of 3 distinct primes.

21624026140434 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 21624026140392 and 21624026140401.

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 3 ways as a sum of consecutive naturals, for example, 1802002178364 + ... + 1802002178375.

It is an arithmetic number, because the mean of its divisors is an integer number (5406006535110).

Almost surely, 2^{21624026140434} is an apocalyptic number.

21624026140434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21624026140434 is a wasteful number, since it uses less digits than its factorization.

21624026140434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3604004356744.

The product of its (nonzero) digits is 221184, while the sum is 39.

The spelling of 21624026140434 in words is "twenty-one trillion, six hundred twenty-four billion, twenty-six million, one hundred forty thousand, four hundred thirty-four".