12628782919 has 8 divisors (see below), whose sum is σ = 12875995872. Its totient is φ = 12381900960.

The previous prime is 12628782841. The next prime is 12628782941. The reversal of 12628782919 is 91928782621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12628782919 - 2⁷ = 12628782791 is a prime.

It is a super-2 number, since 2×12628782919² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12628782919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12628782989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4987 + ... + 159004.

It is an arithmetic number, because the mean of its divisors is an integer number (1609499484).

Almost surely, 2^12628782919 is an apocalyptic number.

12628782919 is a deficient number, since it is larger than the sum of its proper divisors (247212953).

12628782919 is a wasteful number, since it uses less digits than its factorization.

12628782919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165497.

The product of its digits is 1741824, while the sum is 55.

The spelling of 12628782919 in words is "twelve billion, six hundred twenty-eight million, seven hundred eighty-two thousand, nine hundred nineteen".