12704858121 has 8 divisors (see below), whose sum is σ = 16945984000. Its totient is φ = 8466818832.

The previous prime is 12704858093. The next prime is 12704858129. The reversal of 12704858121 is 12185840721.

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

It is not a de Polignac number, because 12704858121 - 2⁷ = 12704857993 is a prime.

It is a super-2 number, since 2×12704858121² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12704858121.

It is not an unprimeable number, because it can be changed into a prime (12704858129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 762025 + ... + 778518.

It is an arithmetic number, because the mean of its divisors is an integer number (2118248000).

Almost surely, 2^12704858121 is an apocalyptic number.

It is an amenable number.

12704858121 is a deficient number, since it is larger than the sum of its proper divisors (4241125879).

12704858121 is a wasteful number, since it uses less digits than its factorization.

12704858121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543295.

The product of its (nonzero) digits is 35840, while the sum is 39.

The spelling of 12704858121 in words is "twelve billion, seven hundred four million, eight hundred fifty-eight thousand, one hundred twenty-one".