22543259872 has 36 divisors (see below), whose sum is σ = 51628094280. Its totient is φ = 9661396416.

The previous prime is 22543259863. The next prime is 22543259873. The reversal of 22543259872 is 27895234522.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22543259873) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7186972 + ... + 7190107.

It is an arithmetic number, because the mean of its divisors is an integer number (1434113730).

Almost surely, 2^22543259872 is an apocalyptic number.

It is an amenable number.

22543259872 is an abundant number, since it is smaller than the sum of its proper divisors (29084834408).

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

22543259872 is a wasteful number, since it uses less digits than its factorization.

22543259872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14377103 (or 14377088 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 49.

The spelling of 22543259872 in words is "twenty-two billion, five hundred forty-three million, two hundred fifty-nine thousand, eight hundred seventy-two".