12791725331 has 48 divisors (see below), whose sum is σ = 16836599808. Its totient is φ = 9599990400.

The previous prime is 12791725321. The next prime is 12791725367. The reversal of 12791725331 is 13352719721.

It is not a de Polignac number, because 12791725331 - 2³⁰ = 11717983507 is a prime.

It is a super-2 number, since 2×12791725331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12791725301) 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 47 ways as a sum of consecutive naturals, for example, 3724391 + ... + 3727823.

It is an arithmetic number, because the mean of its divisors is an integer number (350762496).

Almost surely, 2^12791725331 is an apocalyptic number.

12791725331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12791725331 is a deficient number, since it is larger than the sum of its proper divisors (4044874477).

12791725331 is a wasteful number, since it uses less digits than its factorization.

12791725331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3712 (or 3705 counting only the distinct ones).

The product of its digits is 79380, while the sum is 41.

The spelling of 12791725331 in words is "twelve billion, seven hundred ninety-one million, seven hundred twenty-five thousand, three hundred thirty-one".