12786905743 has 4 divisors (see below), whose sum is σ = 13084275688. Its totient is φ = 12489535800.

The previous prime is 12786905723. The next prime is 12786905749. The reversal of 12786905743 is 34750968721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12786905743 - 2⁵ = 12786905711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12786905749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148684908 + ... + 148684993.

It is an arithmetic number, because the mean of its divisors is an integer number (3271068922).

It is a 1-persistent number, because it is pandigital, but 2⋅12786905743 = 25573811486 is not.

Almost surely, 2^12786905743 is an apocalyptic number.

12786905743 is a deficient number, since it is larger than the sum of its proper divisors (297369945).

12786905743 is an equidigital number, since it uses as much as digits as its factorization.

12786905743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297369944.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 12786905743 in words is "twelve billion, seven hundred eighty-six million, nine hundred five thousand, seven hundred forty-three".