12705027783 has 16 divisors (see below), whose sum is σ = 19362802176. Its totient is φ = 7258980960.

The previous prime is 12705027779. The next prime is 12705027887. The reversal of 12705027783 is 38772050721.

It is not a de Polignac number, because 12705027783 - 2² = 12705027779 is a prime.

It is a super-2 number, since 2×12705027783² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12705027743) 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, 122493 + ... + 201033.

It is an arithmetic number, because the mean of its divisors is an integer number (1210175136).

Almost surely, 2^12705027783 is an apocalyptic number.

12705027783 is a deficient number, since it is larger than the sum of its proper divisors (6657774393).

12705027783 is an equidigital number, since it uses as much as digits as its factorization.

12705027783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86254.

The product of its (nonzero) digits is 164640, while the sum is 42.

The spelling of 12705027783 in words is "twelve billion, seven hundred five million, twenty-seven thousand, seven hundred eighty-three".