1812330807 has 12 divisors (see below), whose sum is σ = 2810962296. Its totient is φ = 1035617520.

The previous prime is 1812330743. The next prime is 1812330833. The reversal of 1812330807 is 7080332181.

It is not a de Polignac number, because 1812330807 - 2⁶ = 1812330743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1812330887) 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 in 11 ways as a sum of consecutive naturals, for example, 6164244 + ... + 6164537.

It is an arithmetic number, because the mean of its divisors is an integer number (234246858).

Almost surely, 2^1812330807 is an apocalyptic number.

1812330807 is a deficient number, since it is larger than the sum of its proper divisors (998631489).

1812330807 is a wasteful number, since it uses less digits than its factorization.

1812330807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12328798 (or 12328791 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 1812330807 is about 42571.4787974296. The cubic root of 1812330807 is about 1219.2118009689.

Adding to 1812330807 its reverse (7080332181), we get a palindrome (8892662988).

The spelling of 1812330807 in words is "one billion, eight hundred twelve million, three hundred thirty thousand, eight hundred seven".