12351727720 has 32 divisors (see below), whose sum is σ = 28999710720. Its totient is φ = 4725878080.

The previous prime is 12351727711. The next prime is 12351727721. The reversal of 12351727720 is 2772715321.

It is a super-3 number, since 3×12351727720³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12351727720.

It is not an unprimeable number, because it can be changed into a prime (12351727721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6711976 + ... + 6713815.

It is an arithmetic number, because the mean of its divisors is an integer number (906240960).

Almost surely, 2^12351727720 is an apocalyptic number.

12351727720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12351727720 is an abundant number, since it is smaller than the sum of its proper divisors (16647983000).

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

12351727720 is a wasteful number, since it uses less digits than its factorization.

12351727720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13425825 (or 13425821 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 37.

The spelling of 12351727720 in words is "twelve billion, three hundred fifty-one million, seven hundred twenty-seven thousand, seven hundred twenty".