2183931648 has 108 divisors (see below), whose sum is σ = 6500148928. Its totient is φ = 704471040.

The previous prime is 2183931641. The next prime is 2183931661. The reversal of 2183931648 is 8461393812.

2183931648 is a `hidden beast` number, since 218 + 393 + 1 + 6 + 48 = 666.

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 (2183931641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56136 + ... + 86712.

Almost surely, 2^2183931648 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 2183931648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3250074464).

2183931648 is an abundant number, since it is smaller than the sum of its proper divisors (4316217280).

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

2183931648 is a wasteful number, since it uses less digits than its factorization.

2183931648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30630 (or 30613 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 2183931648 is about 46732.5544775802. The cubic root of 2183931648 is about 1297.4172880996.

The spelling of 2183931648 in words is "two billion, one hundred eighty-three million, nine hundred thirty-one thousand, six hundred forty-eight".