654438929922 has 30 divisors (see below), whose sum is σ = 1466451044883. Its totient is φ = 218142877788.

The previous prime is 654438929813. The next prime is 654438929981. The reversal of 654438929922 is 229929834456.

654438929922 is a `hidden beast` number, since 6 + 5 + 4 + 438 + 92 + 99 + 22 = 666.

It can be written as a sum of positive squares in only one way, i.e., 327219464961 + 327219464961 = 572031^2 + 572031^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=572031.

It is a self number, because there is not a number n which added to its sum of digits gives 654438929922.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 10264779 + ... + 10328337.

Almost surely, 2^654438929922 is an apocalyptic number.

654438929922 is an abundant number, since it is smaller than the sum of its proper divisors (812012114961).

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

654438929922 is an frugal number, since it uses more digits than its factorization.

654438929922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127132 (or 63564 counting only the distinct ones).

The product of its digits is 67184640, while the sum is 63.

The spelling of 654438929922 in words is "six hundred fifty-four billion, four hundred thirty-eight million, nine hundred twenty-nine thousand, nine hundred twenty-two".