12887371425 has 24 divisors (see below), whose sum is σ = 21350933056. Its totient is φ = 6859131840.

The previous prime is 12887371423. The next prime is 12887371439. The reversal of 12887371425 is 52417378821.

It is not a de Polignac number, because 12887371425 - 2¹ = 12887371423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12887371423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139894 + ... + 212943.

Almost surely, 2^12887371425 is an apocalyptic number.

12887371425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12887371425 is a deficient number, since it is larger than the sum of its proper divisors (8463561631).

12887371425 is a wasteful number, since it uses less digits than its factorization.

12887371425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353337 (or 353332 counting only the distinct ones).

The product of its digits is 752640, while the sum is 48.

The spelling of 12887371425 in words is "twelve billion, eight hundred eighty-seven million, three hundred seventy-one thousand, four hundred twenty-five".