2129112288 has 72 divisors (see below), whose sum is σ = 6202372176. Its totient is φ = 692390400.

The previous prime is 2129112263. The next prime is 2129112289. The reversal of 2129112288 is 8822119212.

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129112289) by changing a digit.

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, 78348 + ... + 101963.

It is an arithmetic number, because the mean of its divisors is an integer number (86144058).

Almost surely, 2^2129112288 is an apocalyptic number.

It is an amenable number.

2129112288 is an abundant number, since it is smaller than the sum of its proper divisors (4073259888).

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

2129112288 is a wasteful number, since it uses less digits than its factorization.

2129112288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180368 (or 180357 counting only the distinct ones).

The product of its digits is 9216, while the sum is 36.

The square root of 2129112288 is about 46142.3047538807. The cubic root of 2129112288 is about 1286.4695825397.

The spelling of 2129112288 in words is "two billion, one hundred twenty-nine million, one hundred twelve thousand, two hundred eighty-eight".