22539140736 has 384 divisors, whose sum is σ = 76153167360. Its totient is φ = 5862850560.

The previous prime is 22539140713. The next prime is 22539140747. The reversal of 22539140736 is 63704193522.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9914896 + ... + 9917168.

It is an arithmetic number, because the mean of its divisors is an integer number (198315540).

Almost surely, 2^22539140736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22539140736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38076583680).

22539140736 is an abundant number, since it is smaller than the sum of its proper divisors (53614026624).

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

22539140736 is a wasteful number, since it uses less digits than its factorization.

22539140736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2352 (or 2333 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 42.

The spelling of 22539140736 in words is "twenty-two billion, five hundred thirty-nine million, one hundred forty thousand, seven hundred thirty-six".