12855377064 has 16 divisors (see below), whose sum is σ = 32138442720. Its totient is φ = 4285125680.

The previous prime is 12855377057. The next prime is 12855377069. The reversal of 12855377064 is 46077355821.

It is not an unprimeable number, because it can be changed into a prime (12855377069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267820332 + ... + 267820379.

It is an arithmetic number, because the mean of its divisors is an integer number (2008652670).

Almost surely, 2^12855377064 is an apocalyptic number.

It is an amenable number.

12855377064 is an abundant number, since it is smaller than the sum of its proper divisors (19283065656).

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

12855377064 is a wasteful number, since it uses less digits than its factorization.

12855377064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535640720 (or 535640716 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 48.

The spelling of 12855377064 in words is "twelve billion, eight hundred fifty-five million, three hundred seventy-seven thousand, sixty-four".