12921139482775 has 12 divisors (see below), whose sum is σ = 16060452143400. Its totient is φ = 10312241144480.

The previous prime is 12921139482773. The next prime is 12921139482791. The reversal of 12921139482775 is 57728493112921.

It is not a de Polignac number, because 12921139482775 - 2¹ = 12921139482773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12921139482773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 616750360 + ... + 616771309.

It is an arithmetic number, because the mean of its divisors is an integer number (1338371011950).

Almost surely, 2^{12921139482775} is an apocalyptic number.

12921139482775 is a deficient number, since it is larger than the sum of its proper divisors (3139312660625).

12921139482775 is a wasteful number, since it uses less digits than its factorization.

12921139482775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233522098 (or 1233522093 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 61.

The spelling of 12921139482775 in words is "twelve trillion, nine hundred twenty-one billion, one hundred thirty-nine million, four hundred eighty-two thousand, seven hundred seventy-five".