22332864378 has 64 divisors (see below), whose sum is σ = 49934656512. Its totient is φ = 6601668480.

The previous prime is 22332864353. The next prime is 22332864401. The reversal of 22332864378 is 87346823322.

It is a super-2 number, since 2×22332864378² (a number of 21 digits) contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 430950 + ... + 479982.

It is an arithmetic number, because the mean of its divisors is an integer number (780229008).

Almost surely, 2^22332864378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22332864378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24967328256).

22332864378 is an abundant number, since it is smaller than the sum of its proper divisors (27601792134).

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

22332864378 is a wasteful number, since it uses less digits than its factorization.

22332864378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49219.

The product of its digits is 2322432, while the sum is 48.

The spelling of 22332864378 in words is "twenty-two billion, three hundred thirty-two million, eight hundred sixty-four thousand, three hundred seventy-eight".