518739895696 has 45 divisors (see below), whose sum is σ = 1104801269313. Its totient is φ = 235776456960.

The previous prime is 518739895691. The next prime is 518739895831. The reversal of 518739895696 is 696598937815.

The square root of 518739895696 is 720236.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 162760606096 + 355979289600 = 403436^2 + 596640^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (518739895691) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 31682200 + ... + 31698568.

Almost surely, 2^518739895696 is an apocalyptic number.

518739895696 is the 720236-th square number.

It is an amenable number.

518739895696 is an abundant number, since it is smaller than the sum of its proper divisors (586061373617).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

518739895696 is an frugal number, since it uses more digits than its factorization.

518739895696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32768 (or 16382 counting only the distinct ones).

The product of its digits is 881798400, while the sum is 76.

The spelling of 518739895696 in words is "five hundred eighteen billion, seven hundred thirty-nine million, eight hundred ninety-five thousand, six hundred ninety-six".