12920750513268 has 48 divisors (see below), whose sum is σ = 33222585713856. Its totient is φ = 3883159365120.

The previous prime is 12920750513267. The next prime is 12920750513287. The reversal of 12920750513268 is 86231505702921.

12920750513268 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 2×12920750513268² (a number of 27 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 12920750513268.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12920750513267) 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, 963078453 + ... + 963091868.

It is an arithmetic number, because the mean of its divisors is an integer number (692137202372).

Almost surely, 2^{12920750513268} is an apocalyptic number.

It is an amenable number.

12920750513268 is an abundant number, since it is smaller than the sum of its proper divisors (20301835200588).

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

12920750513268 is a wasteful number, since it uses less digits than its factorization.

12920750513268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926170384 (or 1926170382 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 51.

The spelling of 12920750513268 in words is "twelve trillion, nine hundred twenty billion, seven hundred fifty million, five hundred thirteen thousand, two hundred sixty-eight".