1813045017848 has 72 divisors (see below), whose sum is σ = 3613327449480. Its totient is φ = 852704906400.

The previous prime is 1813045017799. The next prime is 1813045017869. The reversal of 1813045017848 is 8487105403181.

It is a happy number.

It is a super-2 number, since 2×1813045017848² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1813045017796 and 1813045017805.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 889182413 + ... + 889184451.

It is an arithmetic number, because the mean of its divisors is an integer number (50185103465).

Almost surely, 2^{1813045017848} is an apocalyptic number.

It is an amenable number.

1813045017848 is a deficient number, since it is larger than the sum of its proper divisors (1800282431632).

1813045017848 is an equidigital number, since it uses as much as digits as its factorization.

1813045017848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4273 (or 2211 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 50.

The spelling of 1813045017848 in words is "one trillion, eight hundred thirteen billion, forty-five million, seventeen thousand, eight hundred forty-eight".