12706475186 has 4 divisors (see below), whose sum is σ = 19059712782. Its totient is φ = 6353237592.

The previous prime is 12706475183. The next prime is 12706475209. The reversal of 12706475186 is 68157460721.

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

It can be written as a sum of positive squares in only one way, i.e., 11402181961 + 1304293225 = 106781^2 + 36115^2 .

It is a super-2 number, since 2×12706475186² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12706475186.

It is not an unprimeable number, because it can be changed into a prime (12706475183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3176618795 + ... + 3176618798.

Almost surely, 2^12706475186 is an apocalyptic number.

12706475186 is a deficient number, since it is larger than the sum of its proper divisors (6353237596).

12706475186 is an equidigital number, since it uses as much as digits as its factorization.

12706475186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6353237595.

The product of its (nonzero) digits is 564480, while the sum is 47.

The spelling of 12706475186 in words is "twelve billion, seven hundred six million, four hundred seventy-five thousand, one hundred eighty-six".