2562645668 has 24 divisors (see below), whose sum is σ = 5061026880. Its totient is φ = 1124671520.

The previous prime is 2562645643. The next prime is 2562645703. The reversal of 2562645668 is 8665462652.

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, 1002896 + ... + 1005447.

It is an arithmetic number, because the mean of its divisors is an integer number (210876120).

Almost surely, 2^2562645668 is an apocalyptic number.

It is an amenable number.

2562645668 is a deficient number, since it is larger than the sum of its proper divisors (2498381212).

2562645668 is a wasteful number, since it uses less digits than its factorization.

2562645668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2008387 (or 2008385 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 50.

The square root of 2562645668 is about 50622.5806137933. The cubic root of 2562645668 is about 1368.4518480771.

The spelling of 2562645668 in words is "two billion, five hundred sixty-two million, six hundred forty-five thousand, six hundred sixty-eight".