12491103759 has 16 divisors (see below), whose sum is σ = 17057931264. Its totient is φ = 8127485600.

The previous prime is 12491103749. The next prime is 12491103791. The reversal of 12491103759 is 95730119421.

12491103759 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12491103759 - 2⁵ = 12491103727 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12491103759.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12491103749) 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 15 ways as a sum of consecutive naturals, for example, 175287 + ... + 236024.

It is an arithmetic number, because the mean of its divisors is an integer number (1066120704).

Almost surely, 2^12491103759 is an apocalyptic number.

12491103759 is a deficient number, since it is larger than the sum of its proper divisors (4566827505).

12491103759 is a wasteful number, since it uses less digits than its factorization.

12491103759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411558.

The product of its (nonzero) digits is 68040, while the sum is 42.

The spelling of 12491103759 in words is "twelve billion, four hundred ninety-one million, one hundred three thousand, seven hundred fifty-nine".