1838152966225 has 27 divisors (see below), whose sum is σ = 2355476896731. Its totient is φ = 1422923473200.

The previous prime is 1838152966211. The next prime is 1838152966253. The reversal of 1838152966225 is 5226692518381.

The square root of 1838152966225 is 1355785.

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., 661735067841 + 1176417898384 = 813471^2 + 1084628^2 .

It is not a de Polignac number, because 1838152966225 - 2⁵ = 1838152966193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1838152966225.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 210142302 + ... + 210151048.

Almost surely, 2^{1838152966225} is an apocalyptic number.

1838152966225 is the 1355785-th square number.

1838152966225 is the 677893-rd centered octagonal number.

It is an amenable number.

1838152966225 is a deficient number, since it is larger than the sum of its proper divisors (517323930506).

1838152966225 is an frugal number, since it uses more digits than its factorization.

1838152966225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17566 (or 8783 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 58.

The spelling of 1838152966225 in words is "one trillion, eight hundred thirty-eight billion, one hundred fifty-two million, nine hundred sixty-six thousand, two hundred twenty-five".