22754278990 has 32 divisors (see below), whose sum is σ = 42781452480. Its totient is φ = 8702529024.

The previous prime is 22754278979. The next prime is 22754278999. The reversal of 22754278990 is 9987245722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22754278999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 351019 + ... + 410758.

It is an arithmetic number, because the mean of its divisors is an integer number (1336920390).

Almost surely, 2^22754278990 is an apocalyptic number.

22754278990 is a deficient number, since it is larger than the sum of its proper divisors (20027173490).

22754278990 is a wasteful number, since it uses less digits than its factorization.

22754278990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761916.

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 22754278990 in words is "twenty-two billion, seven hundred fifty-four million, two hundred seventy-eight thousand, nine hundred ninety".