845612663184 has 45 divisors (see below), whose sum is σ = 2366571877579. Its totient is φ = 281867209440.

The previous prime is 845612663131. The next prime is 845612663191. The reversal of 845612663184 is 481366216548.

The square root of 845612663184 is 919572.

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

845612663184 is a `hidden beast` number, since 8 + 4 + 5 + 61 + 266 + 318 + 4 = 666.

It is a super-2 number, since 2×845612663184² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 845612663184.

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, 10996549 + ... + 11073179.

Almost surely, 2^845612663184 is an apocalyptic number.

845612663184 is the 919572-nd square number.

It is an amenable number.

845612663184 is an abundant number, since it is smaller than the sum of its proper divisors (1520959214395).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

845612663184 is an frugal number, since it uses more digits than its factorization.

845612663184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153276 (or 76636 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 54.

The spelling of 845612663184 in words is "eight hundred forty-five billion, six hundred twelve million, six hundred sixty-three thousand, one hundred eighty-four".