1813309196255 has 4 divisors (see below), whose sum is σ = 2175971035512. Its totient is φ = 1450647357000.

The previous prime is 1813309196189. The next prime is 1813309196273. The reversal of 1813309196255 is 5526919033181.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1813309196255 - 2²⁸ = 1813040760799 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1813309196197 and 1813309196206.

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 3 ways as a sum of consecutive naturals, for example, 181330919621 + ... + 181330919630.

It is an arithmetic number, because the mean of its divisors is an integer number (543992758878).

Almost surely, 2^{1813309196255} is an apocalyptic number.

1813309196255 is a deficient number, since it is larger than the sum of its proper divisors (362661839257).

1813309196255 is an equidigital number, since it uses as much as digits as its factorization.

1813309196255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362661839256.

The product of its (nonzero) digits is 1749600, while the sum is 53.

The spelling of 1813309196255 in words is "one trillion, eight hundred thirteen billion, three hundred nine million, one hundred ninety-six thousand, two hundred fifty-five".