618604272196 has 9 divisors (see below), whose sum is σ = 1082560229149. Its totient is φ = 309301349584.

The previous prime is 618604272179. The next prime is 618604272203. The reversal of 618604272196 is 691272406816.

The square root of 618604272196 is 786514.

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., 317791512900 + 300812759296 = 563730^2 + 548464^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1376400 + ... + 1769656.

Almost surely, 2^618604272196 is an apocalyptic number.

618604272196 is the 786514-th square number.

It is an amenable number.

618604272196 is a deficient number, since it is larger than the sum of its proper divisors (463955956953).

618604272196 is an frugal number, since it uses more digits than its factorization.

618604272196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786518 (or 393259 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 618604272196 in words is "six hundred eighteen billion, six hundred four million, two hundred seventy-two thousand, one hundred ninety-six".