12670428949 has 4 divisors (see below), whose sum is σ = 12670695360. Its totient is φ = 12670162540.

The previous prime is 12670428943. The next prime is 12670429043. The reversal of 12670428949 is 94982407621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12670428949 - 2⁵ = 12670428917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12670428896 and 12670428905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12670428943) 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, 40237 + ... + 164194.

It is an arithmetic number, because the mean of its divisors is an integer number (3167673840).

Almost surely, 2^12670428949 is an apocalyptic number.

It is an amenable number.

12670428949 is a deficient number, since it is larger than the sum of its proper divisors (266411).

12670428949 is an equidigital number, since it uses as much as digits as its factorization.

12670428949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266410.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 12670428949 in words is "twelve billion, six hundred seventy million, four hundred twenty-eight thousand, nine hundred forty-nine".