2112009937867 has 2 divisors, whose sum is σ = 2112009937868. Its totient is φ = 2112009937866.

The previous prime is 2112009937861. The next prime is 2112009937903. The reversal of 2112009937867 is 7687399002112.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2112009937867 - 2²⁷ = 2111875720139 is a prime.

It is not a weakly prime, because it can be changed into another prime (2112009937861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056004968933 + 1056004968934.

It is an arithmetic number, because the mean of its divisors is an integer number (1056004968934).

Almost surely, 2^{2112009937867} is an apocalyptic number.

2112009937867 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112009937867 is an equidigital number, since it uses as much as digits as its factorization.

2112009937867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2286144, while the sum is 55.

The spelling of 2112009937867 in words is "two trillion, one hundred twelve billion, nine million, nine hundred thirty-seven thousand, eight hundred sixty-seven".