2331861642 has 32 divisors (see below), whose sum is σ = 5652999360. Its totient is φ = 706624560.

The previous prime is 2331861641. The next prime is 2331861671. The reversal of 2331861642 is 2461681332.

2331861642 is a `hidden beast` number, since 2 + 3 + 3 + 1 + 8 + 6 + 1 + 642 = 666.

2331861642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2331861597 and 2331861606.

It is not an unprimeable number, because it can be changed into a prime (2331861641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1962253 + ... + 1963440.

It is an arithmetic number, because the mean of its divisors is an integer number (176656230).

Almost surely, 2^2331861642 is an apocalyptic number.

2331861642 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2331861642 is an abundant number, since it is smaller than the sum of its proper divisors (3321137718).

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

2331861642 is a wasteful number, since it uses less digits than its factorization.

2331861642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3925715 (or 3925709 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 2331861642 is about 48289.3532986310. The cubic root of 2331861642 is about 1326.0734895082.

The spelling of 2331861642 in words is "two billion, three hundred thirty-one million, eight hundred sixty-one thousand, six hundred forty-two".