12801750329 has 4 divisors (see below), whose sum is σ = 13554794484. Its totient is φ = 12048706176.

The previous prime is 12801750293. The next prime is 12801750337. The reversal of 12801750329 is 92305710821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92305710821 = 1399 ⋅65979779.

It can be written as a sum of positive squares in 2 ways, for example, as 4470259600 + 8331490729 = 66860^2 + 91277^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12801750329 is a prime.

It is a super-2 number, since 2×12801750329² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12801750292 and 12801750301.

It is not an unprimeable number, because it can be changed into a prime (12801750529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376522052 + ... + 376522085.

It is an arithmetic number, because the mean of its divisors is an integer number (3388698621).

Almost surely, 2^12801750329 is an apocalyptic number.

It is an amenable number.

12801750329 is a deficient number, since it is larger than the sum of its proper divisors (753044155).

12801750329 is an equidigital number, since it uses as much as digits as its factorization.

12801750329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753044154.

The product of its (nonzero) digits is 30240, while the sum is 38.

The spelling of 12801750329 in words is "twelve billion, eight hundred one million, seven hundred fifty thousand, three hundred twenty-nine".