12871928481918 has 16 divisors (see below), whose sum is σ = 28084207597056. Its totient is φ = 3900584388440.

The previous prime is 12871928481887. The next prime is 12871928481941. The reversal of 12871928481918 is 81918482917821.

It is a super-2 number, since 2×12871928481918² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97514609646 + ... + 97514609777.

It is an arithmetic number, because the mean of its divisors is an integer number (1755262974816).

Almost surely, 2^{12871928481918} is an apocalyptic number.

12871928481918 is an abundant number, since it is smaller than the sum of its proper divisors (15212279115138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12871928481918 is a wasteful number, since it uses less digits than its factorization.

12871928481918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195029219439.

The product of its digits is 37158912, while the sum is 69.

The spelling of 12871928481918 in words is "twelve trillion, eight hundred seventy-one billion, nine hundred twenty-eight million, four hundred eighty-one thousand, nine hundred eighteen".