2112878364 has 24 divisors (see below), whose sum is σ = 4936795920. Its totient is φ = 703329024.

The previous prime is 2112878363. The next prime is 2112878399. The reversal of 2112878364 is 4638782112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112878363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111309 + ... + 128900.

It is an arithmetic number, because the mean of its divisors is an integer number (205699830).

Almost surely, 2^2112878364 is an apocalyptic number.

It is an amenable number.

2112878364 is an abundant number, since it is smaller than the sum of its proper divisors (2823917556).

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

2112878364 is a wasteful number, since it uses less digits than its factorization.

2112878364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240949 (or 240947 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 2112878364 is about 45966.0566505329. The cubic root of 2112878364 is about 1283.1915724149.

The spelling of 2112878364 in words is "two billion, one hundred twelve million, eight hundred seventy-eight thousand, three hundred sixty-four".