2568743794 has 8 divisors (see below), whose sum is σ = 3916281708. Its totient is φ = 1263316560.

The previous prime is 2568743791. The next prime is 2568743803. The reversal of 2568743794 is 4973478652.

It can be written as a sum of positive squares in 2 ways, for example, as 1863044569 + 705699225 = 43163^2 + 26565^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2568743791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10527517 + ... + 10527760.

Almost surely, 2^2568743794 is an apocalyptic number.

2568743794 is a deficient number, since it is larger than the sum of its proper divisors (1347537914).

2568743794 is a wasteful number, since it uses less digits than its factorization.

2568743794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21055340.

The product of its digits is 10160640, while the sum is 55.

The square root of 2568743794 is about 50682.7761078653. The cubic root of 2568743794 is about 1369.5364538980.

The spelling of 2568743794 in words is "two billion, five hundred sixty-eight million, seven hundred forty-three thousand, seven hundred ninety-four".