22778989110 has 24 divisors (see below), whose sum is σ = 59225371920. Its totient is φ = 6074397072.

The previous prime is 22778989081. The next prime is 22778989117. The reversal of 22778989110 is 1198987722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22778989117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126549850 + ... + 126550029.

It is an arithmetic number, because the mean of its divisors is an integer number (2467723830).

Almost surely, 2^22778989110 is an apocalyptic number.

22778989110 is an abundant number, since it is smaller than the sum of its proper divisors (36446382810).

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

22778989110 is a wasteful number, since it uses less digits than its factorization.

22778989110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253099892 (or 253099889 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 54.

The spelling of 22778989110 in words is "twenty-two billion, seven hundred seventy-eight million, nine hundred eighty-nine thousand, one hundred ten".