22579770780 has 144 divisors (see below), whose sum is σ = 78448353984. Its totient is φ = 5149762560.

The previous prime is 22579770767. The next prime is 22579770781. The reversal of 22579770780 is 8707797522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22579770781) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 561424 + ... + 600296.

It is an arithmetic number, because the mean of its divisors is an integer number (544780236).

Almost surely, 2^22579770780 is an apocalyptic number.

22579770780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22579770780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39224176992).

22579770780 is an abundant number, since it is smaller than the sum of its proper divisors (55868583204).

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

22579770780 is a wasteful number, since it uses less digits than its factorization.

22579770780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39356 (or 39351 counting only the distinct ones).

The product of its (nonzero) digits is 3457440, while the sum is 54.

The spelling of 22579770780 in words is "twenty-two billion, five hundred seventy-nine million, seven hundred seventy thousand, seven hundred eighty".