1812856327 has 2 divisors, whose sum is σ = 1812856328. Its totient is φ = 1812856326.

The previous prime is 1812856313. The next prime is 1812856337. The reversal of 1812856327 is 7236582181.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1812856327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1812856337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 906428163 + 906428164.

It is an arithmetic number, because the mean of its divisors is an integer number (906428164).

Almost surely, 2^1812856327 is an apocalyptic number.

1812856327 is a deficient number, since it is larger than the sum of its proper divisors (1).

1812856327 is an equidigital number, since it uses as much as digits as its factorization.

1812856327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 43.

The square root of 1812856327 is about 42577.6505575402. The cubic root of 1812856327 is about 1219.3296341782.

The spelling of 1812856327 in words is "one billion, eight hundred twelve million, eight hundred fifty-six thousand, three hundred twenty-seven".