218089039194244 has 27 divisors (see below), whose sum is σ = 382586331256101. Its totient is φ = 108779303994480.

The previous prime is 218089039194239. The next prime is 218089039194307. The reversal of 218089039194244 is 442491930980812.

The square root of 218089039194244 is 14767838.

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., 1034821976644 + 217054217217600 = 1017262^2 + 14732760^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 12434510827 + ... + 12434528365.

Almost surely, 2^{218089039194244} is an apocalyptic number.

218089039194244 is the 14767838-th square number.

It is an amenable number.

218089039194244 is a deficient number, since it is larger than the sum of its proper divisors (164497292061857).

218089039194244 is an frugal number, since it uses more digits than its factorization.

218089039194244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35924 (or 17962 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 64.

The spelling of 218089039194244 in words is "two hundred eighteen trillion, eighty-nine billion, thirty-nine million, one hundred ninety-four thousand, two hundred forty-four".