5120780217 has 16 divisors (see below), whose sum is σ = 7804763520. Its totient is φ = 2925533952.

The previous prime is 5120780209. The next prime is 5120780219. The reversal of 5120780217 is 7120870215.

It is not a de Polignac number, because 5120780217 - 2³ = 5120780209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5120780219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85473 + ... + 132465.

It is an arithmetic number, because the mean of its divisors is an integer number (487797720).

Almost surely, 2^5120780217 is an apocalyptic number.

It is an amenable number.

5120780217 is a deficient number, since it is larger than the sum of its proper divisors (2683983303).

5120780217 is a wasteful number, since it uses less digits than its factorization.

5120780217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52192.

The product of its (nonzero) digits is 7840, while the sum is 33.

The square root of 5120780217 is about 71559.6270043381. The cubic root of 5120780217 is about 1723.6352958377.

The spelling of 5120780217 in words is "five billion, one hundred twenty million, seven hundred eighty thousand, two hundred seventeen".