22831997643 has 192 divisors, whose sum is σ = 43249303552. Its totient is φ = 11287019520.

The previous prime is 22831997621. The next prime is 22831997651. The reversal of 22831997643 is 34679913822.

It is not a de Polignac number, because 22831997643 - 2³⁴ = 5652128459 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 22831997643.

It is not an unprimeable number, because it can be changed into a prime (22831997663) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 179779446 + ... + 179779572.

Almost surely, 2^22831997643 is an apocalyptic number.

22831997643 is a deficient number, since it is larger than the sum of its proper divisors (20417305909).

22831997643 is a wasteful number, since it uses less digits than its factorization.

22831997643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354 (or 351 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The spelling of 22831997643 in words is "twenty-two billion, eight hundred thirty-one million, nine hundred ninety-seven thousand, six hundred forty-three".