22878663242112 has 128 divisors (see below), whose sum is σ = 67558820515200. Its totient is φ = 7622269493760.

The previous prime is 22878663242111. The next prime is 22878663242129. The reversal of 22878663242112 is 21124236687822.

22878663242112 is a `hidden beast` number, since 2 + 2 + 87 + 86 + 63 + 2 + 421 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×22878663242112² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22878663242111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4959403 + ... + 8387669.

It is an arithmetic number, because the mean of its divisors is an integer number (527803285275).

Almost surely, 2^{22878663242112} 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 22878663242112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33779410257600).

22878663242112 is an abundant number, since it is smaller than the sum of its proper divisors (44680157273088).

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

22878663242112 is a wasteful number, since it uses less digits than its factorization.

22878663242112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3430221 (or 3430203 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 54.

The spelling of 22878663242112 in words is "twenty-two trillion, eight hundred seventy-eight billion, six hundred sixty-three million, two hundred forty-two thousand, one hundred twelve".