5120778116 has 6 divisors (see below), whose sum is σ = 8961361710. Its totient is φ = 2560389056.

The previous prime is 5120778101. The next prime is 5120778127. The reversal of 5120778116 is 6118770215.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4587352900 + 533425216 = 67730^2 + 23096^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5120778116.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 640097261 + ... + 640097268.

It is an arithmetic number, because the mean of its divisors is an integer number (1493560285).

Almost surely, 2^5120778116 is an apocalyptic number.

It is an amenable number.

5120778116 is a deficient number, since it is larger than the sum of its proper divisors (3840583594).

5120778116 is a wasteful number, since it uses less digits than its factorization.

5120778116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280194533 (or 1280194531 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 38.

The square root of 5120778116 is about 71559.6123242713. The cubic root of 5120778116 is about 1723.6350601081.

The spelling of 5120778116 in words is "five billion, one hundred twenty million, seven hundred seventy-eight thousand, one hundred sixteen".