12693584021 has 8 divisors (see below), whose sum is σ = 13443179904. Its totient is φ = 11944312000.

The previous prime is 12693584017. The next prime is 12693584039. The reversal of 12693584021 is 12048539621.

12693584021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12693584021 - 2² = 12693584017 is a prime.

It is a super-2 number, since 2×12693584021² (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 12693584021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12693584081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2186 + ... + 159348.

It is an arithmetic number, because the mean of its divisors is an integer number (1680397488).

Almost surely, 2^12693584021 is an apocalyptic number.

It is an amenable number.

12693584021 is a deficient number, since it is larger than the sum of its proper divisors (749595883).

12693584021 is a wasteful number, since it uses less digits than its factorization.

12693584021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161931.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 12693584021 in words is "twelve billion, six hundred ninety-three million, five hundred eighty-four thousand, twenty-one".