22891087068 has 24 divisors (see below), whose sum is σ = 53461524480. Its totient is φ = 7623364080.

The previous prime is 22891087049. The next prime is 22891087081. The reversal of 22891087068 is 86078019822.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22891087068.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 861148 + ... + 887331.

It is an arithmetic number, because the mean of its divisors is an integer number (2227563520).

Almost surely, 2^22891087068 is an apocalyptic number.

It is an amenable number.

22891087068 is an abundant number, since it is smaller than the sum of its proper divisors (30570437412).

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

22891087068 is a wasteful number, since it uses less digits than its factorization.

22891087068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749577 (or 1749575 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 51.

The spelling of 22891087068 in words is "twenty-two billion, eight hundred ninety-one million, eighty-seven thousand, sixty-eight".