22091791524 has 48 divisors (see below), whose sum is σ = 56250598656. Its totient is φ = 6692464800.

The previous prime is 22091791523. The next prime is 22091791577. The reversal of 22091791524 is 42519719022.

It is not an unprimeable number, because it can be changed into a prime (22091791523) 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, 447939 + ... + 494805.

It is an arithmetic number, because the mean of its divisors is an integer number (1171887472).

Almost surely, 2^22091791524 is an apocalyptic number.

It is an amenable number.

22091791524 is an abundant number, since it is smaller than the sum of its proper divisors (34158807132).

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

22091791524 is a wasteful number, since it uses less digits than its factorization.

22091791524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50456 (or 50454 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The spelling of 22091791524 in words is "twenty-two billion, ninety-one million, seven hundred ninety-one thousand, five hundred twenty-four".