22438876878 has 256 divisors, whose sum is σ = 60874260480. Its totient is φ = 6045580800.

The previous prime is 22438876853. The next prime is 22438876907. The reversal of 22438876878 is 87867883422.

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 127 ways as a sum of consecutive naturals, for example, 13459801 + ... + 13461467.

It is an arithmetic number, because the mean of its divisors is an integer number (237790080).

Almost surely, 2^22438876878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22438876878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30437130240).

22438876878 is an abundant number, since it is smaller than the sum of its proper divisors (38435383602).

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

22438876878 is a wasteful number, since it uses less digits than its factorization.

22438876878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1780 (or 1774 counting only the distinct ones).

The product of its digits is 57802752, while the sum is 63.

The spelling of 22438876878 in words is "twenty-two billion, four hundred thirty-eight million, eight hundred seventy-six thousand, eight hundred seventy-eight".