22991789850 has 48 divisors (see below), whose sum is σ = 57078364608. Its totient is φ = 6124829440.

The previous prime is 22991789837. The next prime is 22991789879. The reversal of 22991789850 is 5898719922.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68107 + ... + 224993.

It is an arithmetic number, because the mean of its divisors is an integer number (1189132596).

Almost surely, 2^22991789850 is an apocalyptic number.

22991789850 is an abundant number, since it is smaller than the sum of its proper divisors (34086574758).

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

22991789850 is a wasteful number, since it uses less digits than its factorization.

22991789850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157879 (or 157874 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 60.

The spelling of 22991789850 in words is "twenty-two billion, nine hundred ninety-one million, seven hundred eighty-nine thousand, eight hundred fifty".