5715082778 has 16 divisors (see below), whose sum is σ = 8663771880. Its totient is φ = 2827200000.

The previous prime is 5715082759. The next prime is 5715082787. The reversal of 5715082778 is 8772805175.

It can be written as a sum of positive squares in 4 ways, for example, as 4664480209 + 1050602569 = 68297^2 + 32413^2 .

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, 291278 + ... + 310278.

Almost surely, 2^5715082778 is an apocalyptic number.

5715082778 is a deficient number, since it is larger than the sum of its proper divisors (2948689102).

5715082778 is a wasteful number, since it uses less digits than its factorization.

5715082778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20593.

The product of its (nonzero) digits is 1097600, while the sum is 50.

The square root of 5715082778 is about 75598.1664989304. The cubic root of 5715082778 is about 1787.8901911036.

The spelling of 5715082778 in words is "five billion, seven hundred fifteen million, eighty-two thousand, seven hundred seventy-eight".