12750280001 has 8 divisors (see below), whose sum is σ = 12839034600. Its totient is φ = 12661568128.

The previous prime is 12750279947. The next prime is 12750280021. The reversal of 12750280001 is 10008205721.

It can be written as a sum of positive squares in 4 ways, for example, as 26214400 + 12724065601 = 5120^2 + 112801^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12750280001 - 2¹⁸ = 12750017857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12750280021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 799235 + ... + 815031.

It is an arithmetic number, because the mean of its divisors is an integer number (1604879325).

Almost surely, 2^12750280001 is an apocalyptic number.

It is an amenable number.

12750280001 is a deficient number, since it is larger than the sum of its proper divisors (88754599).

12750280001 is a wasteful number, since it uses less digits than its factorization.

12750280001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21363.

The product of its (nonzero) digits is 1120, while the sum is 26.

Adding to 12750280001 its reverse (10008205721), we get a palindrome (22758485722).

The spelling of 12750280001 in words is "twelve billion, seven hundred fifty million, two hundred eighty thousand, one".