12693578206578 has 8 divisors (see below), whose sum is σ = 25387156413168. Its totient is φ = 4231192735524.

The previous prime is 12693578206577. The next prime is 12693578206627. The reversal of 12693578206578 is 87560287539621.

12693578206578 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.

12693578206578 is an admirable number.

It is a super-2 number, since 2×12693578206578² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12693578206577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1057798183876 + ... + 1057798183887.

It is an arithmetic number, because the mean of its divisors is an integer number (3173394551646).

Almost surely, 2^{12693578206578} is an apocalyptic number.

12693578206578 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.

12693578206578 is a wasteful number, since it uses less digits than its factorization.

12693578206578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115596367768.

The product of its (nonzero) digits is 304819200, while the sum is 69.

The spelling of 12693578206578 in words is "twelve trillion, six hundred ninety-three billion, five hundred seventy-eight million, two hundred six thousand, five hundred seventy-eight".