5608778857 has 4 divisors (see below), whose sum is σ = 6118667856. Its totient is φ = 5098889860.

The previous prime is 5608778849. The next prime is 5608778869. The reversal of 5608778857 is 7588778065.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5608778857 - 2³ = 5608778849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5608778795 and 5608778804.

It is not an unprimeable number, because it can be changed into a prime (5608778807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254944483 + ... + 254944504.

It is an arithmetic number, because the mean of its divisors is an integer number (1529666964).

Almost surely, 2^5608778857 is an apocalyptic number.

It is an amenable number.

5608778857 is a deficient number, since it is larger than the sum of its proper divisors (509888999).

5608778857 is a wasteful number, since it uses less digits than its factorization.

5608778857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509888998.

The product of its (nonzero) digits is 26342400, while the sum is 61.

The square root of 5608778857 is about 74891.7809709450. The cubic root of 5608778857 is about 1776.7354692749.

The spelling of 5608778857 in words is "five billion, six hundred eight million, seven hundred seventy-eight thousand, eight hundred fifty-seven".