1842478785 has 64 divisors (see below), whose sum is σ = 3963686400. Its totient is φ = 792723456.

The previous prime is 1842478763. The next prime is 1842478817. The reversal of 1842478785 is 5878742481.

It is not a de Polignac number, because 1842478785 - 2⁵ = 1842478753 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 41280 + ... + 73409.

It is an arithmetic number, because the mean of its divisors is an integer number (61932600).

Almost surely, 2^1842478785 is an apocalyptic number.

1842478785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1842478785 is an abundant number, since it is smaller than the sum of its proper divisors (2121207615).

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

1842478785 is a wasteful number, since it uses less digits than its factorization.

1842478785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114727 (or 114721 counting only the distinct ones).

The product of its digits is 4014080, while the sum is 54.

The square root of 1842478785 is about 42924.1049411633. The cubic root of 1842478785 is about 1225.9351537634.

The spelling of 1842478785 in words is "one billion, eight hundred forty-two million, four hundred seventy-eight thousand, seven hundred eighty-five".