12721235675 has 6 divisors (see below), whose sum is σ = 15774332268. Its totient is φ = 10176988520.

The previous prime is 12721235641. The next prime is 12721235689. The reversal of 12721235675 is 57653212721.

It is not a de Polignac number, because 12721235675 - 2¹⁰ = 12721234651 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 254424689 + ... + 254424738.

It is an arithmetic number, because the mean of its divisors is an integer number (2629055378).

Almost surely, 2^12721235675 is an apocalyptic number.

12721235675 is a deficient number, since it is larger than the sum of its proper divisors (3053096593).

12721235675 is an equidigital number, since it uses as much as digits as its factorization.

12721235675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508849437 (or 508849432 counting only the distinct ones).

The product of its digits is 176400, while the sum is 41.

The spelling of 12721235675 in words is "twelve billion, seven hundred twenty-one million, two hundred thirty-five thousand, six hundred seventy-five".