5216470778 has 8 divisors (see below), whose sum is σ = 7865249268. Its totient is φ = 2594721024.

The previous prime is 5216470751. The next prime is 5216470811. The reversal of 5216470778 is 8770746125.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4875809929 + 340660849 = 69827^2 + 18457^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6756701 + ... + 6757472.

Almost surely, 2^5216470778 is an apocalyptic number.

5216470778 is a deficient number, since it is larger than the sum of its proper divisors (2648778490).

5216470778 is a wasteful number, since it uses less digits than its factorization.

5216470778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13514368.

The product of its (nonzero) digits is 658560, while the sum is 47.

The square root of 5216470778 is about 72225.1395152685. The cubic root of 5216470778 is about 1734.3054663758.

The spelling of 5216470778 in words is "five billion, two hundred sixteen million, four hundred seventy thousand, seven hundred seventy-eight".