22928712290 has 24 divisors (see below), whose sum is σ = 45364743900. Its totient is φ = 8337713120.

The previous prime is 22928712223. The next prime is 22928712341. The reversal of 22928712290 is 9221782922.

It can be written as a sum of positive squares in 2 ways, for example, as 22800094009 + 128618281 = 150997^2 + 11341^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9473465 + ... + 9475884.

Almost surely, 2^22928712290 is an apocalyptic number.

22928712290 is a deficient number, since it is larger than the sum of its proper divisors (22436031610).

22928712290 is a wasteful number, since it uses less digits than its factorization.

22928712290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18949378 (or 18949367 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 22928712290 in words is "twenty-two billion, nine hundred twenty-eight million, seven hundred twelve thousand, two hundred ninety".