12193712780 has 24 divisors (see below), whose sum is σ = 25612947360. Its totient is φ = 4876313600.

The previous prime is 12193712777. The next prime is 12193712827. The reversal of 12193712780 is 8721739121.

It is a happy number.

12193712780 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 2×12193712780² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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, 14705 + ... + 156855.

It is an arithmetic number, because the mean of its divisors is an integer number (1067206140).

Almost surely, 2^12193712780 is an apocalyptic number.

12193712780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12193712780 is an abundant number, since it is smaller than the sum of its proper divisors (13419234580).

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

12193712780 is a wasteful number, since it uses less digits than its factorization.

12193712780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146449 (or 146447 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 41.

The spelling of 12193712780 in words is "twelve billion, one hundred ninety-three million, seven hundred twelve thousand, seven hundred eighty".