12888689451 has 32 divisors (see below), whose sum is σ = 20175422976. Its totient is φ = 7231296000.

The previous prime is 12888689447. The next prime is 12888689453. The reversal of 12888689451 is 15498688821.

It is not a de Polignac number, because 12888689451 - 2² = 12888689447 is a prime.

It is a super-2 number, since 2×12888689451² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12888689453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154095 + ... + 222536.

It is an arithmetic number, because the mean of its divisors is an integer number (630481968).

Almost surely, 2^12888689451 is an apocalyptic number.

12888689451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12888689451 is a deficient number, since it is larger than the sum of its proper divisors (7286733525).

12888689451 is a wasteful number, since it uses less digits than its factorization.

12888689451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376723.

The product of its digits is 8847360, while the sum is 60.

The spelling of 12888689451 in words is "twelve billion, eight hundred eighty-eight million, six hundred eighty-nine thousand, four hundred fifty-one".