2566426768 has 10 divisors (see below), whose sum is σ = 4972451894. Its totient is φ = 1283213376.

The previous prime is 2566426741. The next prime is 2566426769. The reversal of 2566426768 is 8676246652.

It can be written as a sum of positive squares in only one way, i.e., 1823973264 + 742453504 = 42708^2 + 27248^2 .

It is not an unprimeable number, because it can be changed into a prime (2566426769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80200821 + ... + 80200852.

Almost surely, 2^2566426768 is an apocalyptic number.

It is an amenable number.

2566426768 is a deficient number, since it is larger than the sum of its proper divisors (2406025126).

2566426768 is a wasteful number, since it uses less digits than its factorization.

2566426768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160401681 (or 160401675 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 52.

The square root of 2566426768 is about 50659.9128305606. The cubic root of 2566426768 is about 1369.1245526727.

The spelling of 2566426768 in words is "two billion, five hundred sixty-six million, four hundred twenty-six thousand, seven hundred sixty-eight".