1852378162441 has 3 divisors (see below), whose sum is σ = 1852379523463. Its totient is φ = 1852376801420.

The previous prime is 1852378162387. The next prime is 1852378162507. The reversal of 1852378162441 is 1442618732581.

The square root of 1852378162441 is 1361021.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 95958072441 + 1756420090000 = 309771^2 + 1325300^2 .

It is not a de Polignac number, because 1852378162441 - 2¹⁷ = 1852378031369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1852378162841) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 680511 + ... + 2041531.

Almost surely, 2^{1852378162441} is an apocalyptic number.

1852378162441 is the 1361021-st square number.

1852378162441 is the 680511-st centered octagonal number.

It is an amenable number.

1852378162441 is a deficient number, since it is larger than the sum of its proper divisors (1361022).

1852378162441 is an frugal number, since it uses more digits than its factorization.

1852378162441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2722042 (or 1361021 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 52.

It can be divided in two parts, 18523 and 78162441, that added together give a square (78180964 = 8842²).

The spelling of 1852378162441 in words is "one trillion, eight hundred fifty-two billion, three hundred seventy-eight million, one hundred sixty-two thousand, four hundred forty-one".