22739205312 has 168 divisors, whose sum is σ = 69601933440. Its totient is φ = 7082127360.

The previous prime is 22739205271. The next prime is 22739205373. The reversal of 22739205312 is 21350293722.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 495868 + ... + 539780.

Almost surely, 2^22739205312 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 22739205312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34800966720).

22739205312 is an abundant number, since it is smaller than the sum of its proper divisors (46862728128).

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

22739205312 is a wasteful number, since it uses less digits than its factorization.

22739205312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43991 (or 43978 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The spelling of 22739205312 in words is "twenty-two billion, seven hundred thirty-nine million, two hundred five thousand, three hundred twelve".