12662573838 has 8 divisors (see below), whose sum is σ = 25325147688. Its totient is φ = 4220857944.

The previous prime is 12662573821. The next prime is 12662573843. The reversal of 12662573838 is 83837526621.

It is a happy number.

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

12662573838 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1055214481 + ... + 1055214492.

It is an arithmetic number, because the mean of its divisors is an integer number (3165643461).

Almost surely, 2^12662573838 is an apocalyptic number.

12662573838 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12662573838 is a wasteful number, since it uses less digits than its factorization.

12662573838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110428978.

The product of its digits is 2903040, while the sum is 51.

The spelling of 12662573838 in words is "twelve billion, six hundred sixty-two million, five hundred seventy-three thousand, eight hundred thirty-eight".