22718945890 has 16 divisors (see below), whose sum is σ = 40899416832. Its totient is φ = 9086397424.

The previous prime is 22718945857. The next prime is 22718945927. The reversal of 22718945890 is 9854981722.

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, 64594 + ... + 222733.

It is an arithmetic number, because the mean of its divisors is an integer number (2556213552).

Almost surely, 2^22718945890 is an apocalyptic number.

22718945890 is a deficient number, since it is larger than the sum of its proper divisors (18180470942).

22718945890 is a wasteful number, since it uses less digits than its factorization.

22718945890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295241.

The product of its (nonzero) digits is 2903040, while the sum is 55.

The spelling of 22718945890 in words is "twenty-two billion, seven hundred eighteen million, nine hundred forty-five thousand, eight hundred ninety".