21424246242084 has 72 divisors (see below), whose sum is σ = 64026483044160. Its totient is φ = 5910136892352.

The previous prime is 21424246242083. The next prime is 21424246242233. The reversal of 21424246242084 is 48024264242412.

21424246242084 is a `hidden beast` number, since 2 + 14 + 2 + 4 + 2 + 4 + 624 + 2 + 0 + 8 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (21424246242083) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1465800454 + ... + 1465815069.

Almost surely, 2^{21424246242084} is an apocalyptic number.

It is an amenable number.

21424246242084 is an abundant number, since it is smaller than the sum of its proper divisors (42602236802076).

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

21424246242084 is a wasteful number, since it uses less digits than its factorization.

21424246242084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2931615569 (or 2931615564 counting only the distinct ones).

The product of its (nonzero) digits is 1572864, while the sum is 45.

The spelling of 21424246242084 in words is "twenty-one trillion, four hundred twenty-four billion, two hundred forty-six million, two hundred forty-two thousand, eighty-four".