2545790668 has 6 divisors (see below), whose sum is σ = 4455133676. Its totient is φ = 1272895332.

The previous prime is 2545790641. The next prime is 2545790671. The reversal of 2545790668 is 8660975452.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 318223830 + ... + 318223837.

Almost surely, 2^2545790668 is an apocalyptic number.

It is an amenable number.

2545790668 is a deficient number, since it is larger than the sum of its proper divisors (1909343008).

2545790668 is a wasteful number, since it uses less digits than its factorization.

2545790668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636447671 (or 636447669 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 52.

The square root of 2545790668 is about 50455.8288803187. The cubic root of 2545790668 is about 1365.4450583955.

The spelling of 2545790668 in words is "two billion, five hundred forty-five million, seven hundred ninety thousand, six hundred sixty-eight".