22928729936 has 60 divisors (see below), whose sum is σ = 51878915028. Its totient is φ = 9788276736.

The previous prime is 22928729891. The next prime is 22928729977. The reversal of 22928729936 is 63992782922.

It can be written as a sum of positive squares in 2 ways, for example, as 15525160000 + 7403569936 = 124600^2 + 86044^2 .

It is a congruent number.

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, 144590 + ... + 258386.

Almost surely, 2^22928729936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22928729936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25939457514).

22928729936 is an abundant number, since it is smaller than the sum of its proper divisors (28950185092).

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

22928729936 is a wasteful number, since it uses less digits than its factorization.

22928729936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114076 (or 114063 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 59.

The spelling of 22928729936 in words is "twenty-two billion, nine hundred twenty-eight million, seven hundred twenty-nine thousand, nine hundred thirty-six".