2641868168 has 32 divisors (see below), whose sum is σ = 5018160600. Its totient is φ = 1303746048.

The previous prime is 2641868147. The next prime is 2641868179. The reversal of 2641868168 is 8618681462.

It can be written as a sum of positive squares in 4 ways, for example, as 385808164 + 2256060004 = 19642^2 + 47498^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433430 + ... + 439482.

Almost surely, 2^2641868168 is an apocalyptic number.

It is an amenable number.

2641868168 is a deficient number, since it is larger than the sum of its proper divisors (2376292432).

2641868168 is a wasteful number, since it uses less digits than its factorization.

2641868168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6761 (or 6757 counting only the distinct ones).

The product of its digits is 884736, while the sum is 50.

The square root of 2641868168 is about 51399.1066848442. The cubic root of 2641868168 is about 1382.4105749814.

The spelling of 2641868168 in words is "two billion, six hundred forty-one million, eight hundred sixty-eight thousand, one hundred sixty-eight".