12889627378745 has 32 divisors (see below), whose sum is σ = 16889765811072. Its totient is φ = 9385758531072.

The previous prime is 12889627378673. The next prime is 12889627378811. The reversal of 12889627378745 is 54787372698821.

It is a cyclic number.

It is not a de Polignac number, because 12889627378745 - 2¹⁶ = 12889627313209 is a prime.

It is a super-2 number, since 2×12889627378745² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18770834 + ... + 19445396.

It is an arithmetic number, because the mean of its divisors is an integer number (527805181596).

Almost surely, 2^{12889627378745} is an apocalyptic number.

It is an amenable number.

12889627378745 is a deficient number, since it is larger than the sum of its proper divisors (4000138432327).

12889627378745 is a wasteful number, since it uses less digits than its factorization.

12889627378745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678681.

The product of its digits is 2275983360, while the sum is 77.

The spelling of 12889627378745 in words is "twelve trillion, eight hundred eighty-nine billion, six hundred twenty-seven million, three hundred seventy-eight thousand, seven hundred forty-five".