22742965728 has 96 divisors (see below), whose sum is σ = 75809905920. Its totient is φ = 6497988480.

The previous prime is 22742965727. The next prime is 22742965753. The reversal of 22742965728 is 82756924722.

22742965728 is a `hidden beast` number, since 2 + 27 + 42 + 9 + 6 + 572 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22742965727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1874158 + ... + 1886253.

It is an arithmetic number, because the mean of its divisors is an integer number (789686520).

Almost surely, 2^22742965728 is an apocalyptic number.

22742965728 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22742965728 is an abundant number, since it is smaller than the sum of its proper divisors (53066940192).

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

22742965728 is a wasteful number, since it uses less digits than its factorization.

22742965728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3760437 (or 3760423 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 54.

The spelling of 22742965728 in words is "twenty-two billion, seven hundred forty-two million, nine hundred sixty-five thousand, seven hundred twenty-eight".