22939578144 has 216 divisors, whose sum is σ = 78503066460. Its totient is φ = 6328046592.

The previous prime is 22939578143. The next prime is 22939578169. The reversal of 22939578144 is 44187593922.

22939578144 is a `hidden beast` number, since 2 + 29 + 3 + 9 + 578 + 1 + 44 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21782217744 + 1157360400 = 147588^2 + 34020^2 .

It is not an unprimeable number, because it can be changed into a prime (22939578143) 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 35 ways as a sum of consecutive naturals, for example, 381222 + ... + 437274.

Almost surely, 2^22939578144 is an apocalyptic number.

22939578144 is a gapful number since it is divisible by the number (24) 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 22939578144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39251533230).

22939578144 is an abundant number, since it is smaller than the sum of its proper divisors (55563488316).

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

22939578144 is a wasteful number, since it uses less digits than its factorization.

22939578144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56112 (or 56094 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The spelling of 22939578144 in words is "twenty-two billion, nine hundred thirty-nine million, five hundred seventy-eight thousand, one hundred forty-four".