12704147919 has 32 divisors (see below), whose sum is σ = 19164211200. Its totient is φ = 8315334720.

The previous prime is 12704147903. The next prime is 12704147927. The reversal of 12704147919 is 91974140721.

12704147919 is a `hidden beast` number, since 127 + 0 + 41 + 479 + 19 = 666.

It is not a de Polignac number, because 12704147919 - 2⁴ = 12704147903 is a prime.

It is a super-2 number, since 2×12704147919² (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 (12704947919) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1370139 + ... + 1379379.

It is an arithmetic number, because the mean of its divisors is an integer number (598881600).

Almost surely, 2^12704147919 is an apocalyptic number.

12704147919 is a deficient number, since it is larger than the sum of its proper divisors (6460063281).

12704147919 is an equidigital number, since it uses as much as digits as its factorization.

12704147919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10172 (or 10166 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The spelling of 12704147919 in words is "twelve billion, seven hundred four million, one hundred forty-seven thousand, nine hundred nineteen".