2664369844 has 6 divisors (see below), whose sum is σ = 4662647234. Its totient is φ = 1332184920.

The previous prime is 2664369817. The next prime is 2664369847. The reversal of 2664369844 is 4489634662.

It can be written as a sum of positive squares in only one way, i.e., 1338681744 + 1325688100 = 36588^2 + 36410^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2664369791 and 2664369800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664369847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333046227 + ... + 333046234.

Almost surely, 2^2664369844 is an apocalyptic number.

It is an amenable number.

2664369844 is a deficient number, since it is larger than the sum of its proper divisors (1998277390).

2664369844 is a wasteful number, since it uses less digits than its factorization.

2664369844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666092465 (or 666092463 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 52.

The square root of 2664369844 is about 51617.5342688897. The cubic root of 2664369844 is about 1386.3243023689.

The spelling of 2664369844 in words is "two billion, six hundred sixty-four million, three hundred sixty-nine thousand, eight hundred forty-four".