21622700426436 has 36 divisors (see below), whose sum is σ = 55198543837164. Its totient is φ = 7136204760000.

The previous prime is 21622700426429. The next prime is 21622700426497. The reversal of 21622700426436 is 63462400722612.

21622700426436 is a `hidden beast` number, since 2 + 162 + 27 + 0 + 0 + 426 + 43 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9241028488836 + 12381671937600 = 3039906^2 + 3518760^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 21622700426391 and 21622700426400.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2973415015 + ... + 2973422286.

Almost surely, 2^{21622700426436} is an apocalyptic number.

It is an amenable number.

21622700426436 is an abundant number, since it is smaller than the sum of its proper divisors (33575843410728).

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

21622700426436 is a wasteful number, since it uses less digits than its factorization.

21622700426436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5946837412 (or 5946837407 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 45.

The spelling of 21622700426436 in words is "twenty-one trillion, six hundred twenty-two billion, seven hundred million, four hundred twenty-six thousand, four hundred thirty-six".