22978989072 has 120 divisors (see below), whose sum is σ = 71490368768. Its totient is φ = 6842361600.

The previous prime is 22978989023. The next prime is 22978989073. The reversal of 22978989072 is 27098987922.

It is not an unprimeable number, because it can be changed into a prime (22978989073) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139954 + ... + 256017.

Almost surely, 2^22978989072 is an apocalyptic number.

It is an amenable number.

22978989072 is an abundant number, since it is smaller than the sum of its proper divisors (48511379696).

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

22978989072 is a wasteful number, since it uses less digits than its factorization.

22978989072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396029 (or 396020 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 63.

The spelling of 22978989072 in words is "twenty-two billion, nine hundred seventy-eight million, nine hundred eighty-nine thousand, seventy-two".