12789493595720 has 64 divisors (see below), whose sum is σ = 30307133620800. Its totient is φ = 4843948504320.

The previous prime is 12789493595719. The next prime is 12789493595729. The reversal of 12789493595720 is 2759539498721.

12789493595720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12789493595720² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12789493595729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3087851 + ... + 5925690.

It is an arithmetic number, because the mean of its divisors is an integer number (473548962825).

Almost surely, 2^{12789493595720} is an apocalyptic number.

12789493595720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12789493595720 is an abundant number, since it is smaller than the sum of its proper divisors (17517640025080).

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

12789493595720 is a wasteful number, since it uses less digits than its factorization.

12789493595720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9015438 (or 9015434 counting only the distinct ones).

The product of its (nonzero) digits is 342921600, while the sum is 71.

The spelling of 12789493595720 in words is "twelve trillion, seven hundred eighty-nine billion, four hundred ninety-three million, five hundred ninety-five thousand, seven hundred twenty".