12707312772 has 48 divisors (see below), whose sum is σ = 36966730752. Its totient is φ = 3300600480.

The previous prime is 12707312753. The next prime is 12707312777. The reversal of 12707312772 is 27721370721.

It is a happy number.

It is a super-2 number, since 2×12707312772² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12707312772.

It is not an unprimeable number, because it can be changed into a prime (12707312777) 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, 6875328 + ... + 6877175.

It is an arithmetic number, because the mean of its divisors is an integer number (770140224).

Almost surely, 2^12707312772 is an apocalyptic number.

12707312772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12707312772 is an abundant number, since it is smaller than the sum of its proper divisors (24259417980).

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

12707312772 is a wasteful number, since it uses less digits than its factorization.

12707312772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13752528 (or 13752526 counting only the distinct ones).

The product of its (nonzero) digits is 57624, while the sum is 39.

The spelling of 12707312772 in words is "twelve billion, seven hundred seven million, three hundred twelve thousand, seven hundred seventy-two".