12190809743 has 16 divisors (see below), whose sum is σ = 14278372416. Its totient is φ = 10189973760.

The previous prime is 12190809731. The next prime is 12190809749. The reversal of 12190809743 is 34790809121.

It is a Cunningham number, because it is equal to 110412²-1.

It is a cyclic number.

It is not a de Polignac number, because 12190809743 - 2⁴ = 12190809727 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12190809694 and 12190809703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12190809749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 765005 + ... + 780777.

It is an arithmetic number, because the mean of its divisors is an integer number (892398276).

Almost surely, 2^12190809743 is an apocalyptic number.

12190809743 is a deficient number, since it is larger than the sum of its proper divisors (2087562673).

12190809743 is a wasteful number, since it uses less digits than its factorization.

12190809743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18514.

The product of its (nonzero) digits is 108864, while the sum is 44.

The spelling of 12190809743 in words is "twelve billion, one hundred ninety million, eight hundred nine thousand, seven hundred forty-three".