1812100068067 has 32 divisors (see below), whose sum is σ = 2029104000000. Its totient is φ = 1608208390656.

The previous prime is 1812100067963. The next prime is 1812100068113. The reversal of 1812100068067 is 7608600012181.

It is a de Polignac number, because none of the positive numbers 2^k-1812100068067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1812100068167) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 212210284 + ... + 212218822.

It is an arithmetic number, because the mean of its divisors is an integer number (63409500000).

Almost surely, 2^{1812100068067} is an apocalyptic number.

1812100068067 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1812100068067 is a deficient number, since it is larger than the sum of its proper divisors (217003931933).

1812100068067 is a wasteful number, since it uses less digits than its factorization.

1812100068067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11563.

The product of its (nonzero) digits is 32256, while the sum is 40.

The spelling of 1812100068067 in words is "one trillion, eight hundred twelve billion, one hundred million, sixty-eight thousand, sixty-seven".