22729595772 has 24 divisors (see below), whose sum is σ = 57115394896. Its totient is φ = 6993721728.

The previous prime is 22729595771. The next prime is 22729595773. The reversal of 22729595772 is 27759592722.

It is an interprime number because it is at equal distance from previous prime (22729595771) and next prime (22729595773).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22729595771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72851113 + ... + 72851424.

Almost surely, 2^22729595772 is an apocalyptic number.

It is an amenable number.

22729595772 is an abundant number, since it is smaller than the sum of its proper divisors (34385799124).

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

22729595772 is a wasteful number, since it uses less digits than its factorization.

22729595772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145702557 (or 145702555 counting only the distinct ones).

The product of its digits is 11113200, while the sum is 57.

The spelling of 22729595772 in words is "twenty-two billion, seven hundred twenty-nine million, five hundred ninety-five thousand, seven hundred seventy-two".