5718256778 has 16 divisors (see below), whose sum is σ = 9238634496. Its totient is φ = 2638781040.

The previous prime is 5718256771. The next prime is 5718256823. The reversal of 5718256778 is 8776528175.

It is not an unprimeable number, because it can be changed into a prime (5718256771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205943 + ... + 232053.

It is an arithmetic number, because the mean of its divisors is an integer number (577414656).

Almost surely, 2^5718256778 is an apocalyptic number.

5718256778 is a deficient number, since it is larger than the sum of its proper divisors (3520377718).

5718256778 is a wasteful number, since it uses less digits than its factorization.

5718256778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34549.

The product of its digits is 6585600, while the sum is 56.

The square root of 5718256778 is about 75619.1561576827. The cubic root of 5718256778 is about 1788.2211115513.

The spelling of 5718256778 in words is "five billion, seven hundred eighteen million, two hundred fifty-six thousand, seven hundred seventy-eight".