12739108887 has 6 divisors (see below), whose sum is σ = 18400935072. Its totient is φ = 8492739252.

The previous prime is 12739108859. The next prime is 12739108913. The reversal of 12739108887 is 78880193721.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-12739108887 is a prime.

It is a super-3 number, since 3×12739108887³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12739108817) 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 5 ways as a sum of consecutive naturals, for example, 707728263 + ... + 707728280.

It is an arithmetic number, because the mean of its divisors is an integer number (3066822512).

Almost surely, 2^12739108887 is an apocalyptic number.

12739108887 is a deficient number, since it is larger than the sum of its proper divisors (5661826185).

12739108887 is a wasteful number, since it uses less digits than its factorization.

12739108887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415456549 (or 1415456546 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 54.

The spelling of 12739108887 in words is "twelve billion, seven hundred thirty-nine million, one hundred eight thousand, eight hundred eighty-seven".