22378394592 has 72 divisors (see below), whose sum is σ = 63737449776. Its totient is φ = 7447873536.

The previous prime is 22378394531. The next prime is 22378394609. The reversal of 22378394592 is 29549387322.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126288 + ... + 246384.

It is an arithmetic number, because the mean of its divisors is an integer number (885242358).

Almost surely, 2^22378394592 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 22378394592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31868724888).

22378394592 is an abundant number, since it is smaller than the sum of its proper divisors (41359055184).

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

22378394592 is a wasteful number, since it uses less digits than its factorization.

22378394592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120760 (or 120749 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The spelling of 22378394592 in words is "twenty-two billion, three hundred seventy-eight million, three hundred ninety-four thousand, five hundred ninety-two".