22427121654 has 96 divisors (see below), whose sum is σ = 56609280000. Its totient is φ = 6284178432.

The previous prime is 22427121511. The next prime is 22427121671. The reversal of 22427121654 is 45612172422.

22427121654 is a `hidden beast` number, since 224 + 271 + 2 + 165 + 4 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3334507 + ... + 3341225.

It is an arithmetic number, because the mean of its divisors is an integer number (589680000).

Almost surely, 2^22427121654 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22427121654, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28304640000).

22427121654 is an abundant number, since it is smaller than the sum of its proper divisors (34182158346).

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

22427121654 is a wasteful number, since it uses less digits than its factorization.

22427121654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7242 (or 7239 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The spelling of 22427121654 in words is "twenty-two billion, four hundred twenty-seven million, one hundred twenty-one thousand, six hundred fifty-four".