2331645684 has 12 divisors (see below), whose sum is σ = 5440506624. Its totient is φ = 777215224.

The previous prime is 2331645671. The next prime is 2331645689. The reversal of 2331645684 is 4865461332.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2331645689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97151892 + ... + 97151915.

It is an arithmetic number, because the mean of its divisors is an integer number (453375552).

Almost surely, 2^2331645684 is an apocalyptic number.

It is an amenable number.

2331645684 is an abundant number, since it is smaller than the sum of its proper divisors (3108860940).

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

2331645684 is a wasteful number, since it uses less digits than its factorization.

2331645684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194303814 (or 194303812 counting only the distinct ones).

The product of its digits is 414720, while the sum is 42.

The square root of 2331645684 is about 48287.1171638979. The cubic root of 2331645684 is about 1326.0325515419.

The spelling of 2331645684 in words is "two billion, three hundred thirty-one million, six hundred forty-five thousand, six hundred eighty-four".