1845182640625 has 21 divisors (see below), whose sum is σ = 2306661040767. Its totient is φ = 1476010275000.

The previous prime is 1845182640601. The next prime is 1845182640647. The reversal of 1845182640625 is 5260462815481.

The square root of 1845182640625 is 1358375.

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

It can be written as a sum of positive squares in 3 ways, for example, as 1616557130721 + 228625509904 = 1271439^2 + 478148^2 .

It is not a de Polignac number, because 1845182640625 - 2²⁷ = 1845048422897 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 169791442 + ... + 169802308.

Almost surely, 2^{1845182640625} is an apocalyptic number.

1845182640625 is the 1358375-th square number.

1845182640625 is the 679188-th centered octagonal number.

It is an amenable number.

1845182640625 is a deficient number, since it is larger than the sum of its proper divisors (461478400142).

1845182640625 is an frugal number, since it uses more digits than its factorization.

1845182640625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21764 (or 10872 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 52.

The spelling of 1845182640625 in words is "one trillion, eight hundred forty-five billion, one hundred eighty-two million, six hundred forty thousand, six hundred twenty-five".