12346211805 has 16 divisors (see below), whose sum is σ = 19762942464. Its totient is φ = 6581645120.

The previous prime is 12346211771. The next prime is 12346211863. The reversal of 12346211805 is 50811264321.

It is not a de Polignac number, because 12346211805 - 2¹⁶ = 12346146269 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 153366 + ... + 219575.

It is an arithmetic number, because the mean of its divisors is an integer number (1235183904).

Almost surely, 2^12346211805 is an apocalyptic number.

12346211805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12346211805 is a deficient number, since it is larger than the sum of its proper divisors (7416730659).

12346211805 is a wasteful number, since it uses less digits than its factorization.

12346211805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375156.

The product of its (nonzero) digits is 11520, while the sum is 33.

The spelling of 12346211805 in words is "twelve billion, three hundred forty-six million, two hundred eleven thousand, eight hundred five".