518437440676 has 27 divisors (see below), whose sum is σ = 912978865603. Its totient is φ = 257596501760.

The previous prime is 518437440649. The next prime is 518437440727. The reversal of 518437440676 is 676044734815.

The square root of 518437440676 is 720026.

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

It can be written as a sum of positive squares in 4 ways, for example, as 63589708900 + 454847731776 = 252170^2 + 674424^2 .

It is a Duffinian 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 8 ways as a sum of consecutive naturals, for example, 249127956 + ... + 249130036.

Almost surely, 2^518437440676 is an apocalyptic number.

518437440676 is the 720026-th square number.

It is an amenable number.

518437440676 is a deficient number, since it is larger than the sum of its proper divisors (394541424927).

518437440676 is an frugal number, since it uses more digits than its factorization.

518437440676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4512 (or 2256 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 55.

The spelling of 518437440676 in words is "five hundred eighteen billion, four hundred thirty-seven million, four hundred forty thousand, six hundred seventy-six".