1845604402785 has 48 divisors (see below), whose sum is σ = 3758321706048. Its totient is φ = 826004764800.

The previous prime is 1845604402699. The next prime is 1845604402813. The reversal of 1845604402785 is 5872044065481.

1845604402785 is a `hidden beast` number, since 1 + 8 + 4 + 5 + 604 + 4 + 0 + 27 + 8 + 5 = 666.

It is not a de Polignac number, because 1845604402785 - 2¹² = 1845604398689 is a prime.

It is a super-2 number, since 2×1845604402785² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 143397171 + ... + 143410040.

It is an arithmetic number, because the mean of its divisors is an integer number (78298368876).

Almost surely, 2^{1845604402785} is an apocalyptic number.

1845604402785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1845604402785 is an abundant number, since it is smaller than the sum of its proper divisors (1912717303263).

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

1845604402785 is a wasteful number, since it uses less digits than its factorization.

1845604402785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286807246 (or 286807243 counting only the distinct ones).

The product of its (nonzero) digits is 8601600, while the sum is 54.

The spelling of 1845604402785 in words is "one trillion, eight hundred forty-five billion, six hundred four million, four hundred two thousand, seven hundred eighty-five".