2568492761 has 2 divisors, whose sum is σ = 2568492762. Its totient is φ = 2568492760.

The previous prime is 2568492739. The next prime is 2568492803. The reversal of 2568492761 is 1672948652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2475659536 + 92833225 = 49756^2 + 9635^2 .

It is a cyclic number.

It is not a de Polignac number, because 2568492761 - 2¹⁴ = 2568476377 is a prime.

It is not a weakly prime, because it can be changed into another prime (2568492361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1284246380 + 1284246381.

It is an arithmetic number, because the mean of its divisors is an integer number (1284246381).

Almost surely, 2^2568492761 is an apocalyptic number.

It is an amenable number.

2568492761 is a deficient number, since it is larger than the sum of its proper divisors (1).

2568492761 is an equidigital number, since it uses as much as digits as its factorization.

2568492761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 50.

The square root of 2568492761 is about 50680.2995354211. The cubic root of 2568492761 is about 1369.4918393481.

The spelling of 2568492761 in words is "two billion, five hundred sixty-eight million, four hundred ninety-two thousand, seven hundred sixty-one".