2681542844 has 24 divisors (see below), whose sum is σ = 4897873008. Its totient is φ = 1283384960.

The previous prime is 2681542819. The next prime is 2681542849. The reversal of 2681542844 is 4482451862.

It is a junction number, because it is equal to n+sod(n) for n = 2681542795 and 2681542804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2681542849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145562 + ... + 162945.

It is an arithmetic number, because the mean of its divisors is an integer number (204078042).

Almost surely, 2^2681542844 is an apocalyptic number.

It is an amenable number.

2681542844 is a deficient number, since it is larger than the sum of its proper divisors (2216330164).

2681542844 is a wasteful number, since it uses less digits than its factorization.

2681542844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308605 (or 308603 counting only the distinct ones).

The product of its digits is 491520, while the sum is 44.

The square root of 2681542844 is about 51783.6155941240. The cubic root of 2681542844 is about 1389.2964097847.

The spelling of 2681542844 in words is "two billion, six hundred eighty-one million, five hundred forty-two thousand, eight hundred forty-four".