2123481888 has 144 divisors (see below), whose sum is σ = 6712445376. Its totient is φ = 631288320.

The previous prime is 2123481863. The next prime is 2123481929. The reversal of 2123481888 is 8881843212.

It is a happy number.

2123481888 is a `hidden beast` number, since 212 + 348 + 18 + 88 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 161581 + ... + 174227.

It is an arithmetic number, because the mean of its divisors is an integer number (46614204).

Almost surely, 2^2123481888 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 2123481888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3356222688).

2123481888 is an abundant number, since it is smaller than the sum of its proper divisors (4588963488).

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

2123481888 is a wasteful number, since it uses less digits than its factorization.

2123481888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12727 (or 12716 counting only the distinct ones).

The product of its digits is 196608, while the sum is 45.

The square root of 2123481888 is about 46081.2531079614. The cubic root of 2123481888 is about 1285.3345660455.

The spelling of 2123481888 in words is "two billion, one hundred twenty-three million, four hundred eighty-one thousand, eight hundred eighty-eight".