12851978815676 has 576 divisors, whose sum is σ = 31945230385152. Its totient is φ = 4397234688000.

The previous prime is 12851978815657. The next prime is 12851978815699. The reversal of 12851978815676 is 67651887915821.

Its product of digits (406425600) is a multiple of the sum of its prime factors (882).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 23755967966 + ... + 23755968506.

Almost surely, 2^{12851978815676} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12851978815676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15972615192576).

12851978815676 is an abundant number, since it is smaller than the sum of its proper divisors (19093251569476).

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

12851978815676 is a wasteful number, since it uses less digits than its factorization.

12851978815676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882 (or 869 counting only the distinct ones).

The product of its digits is 406425600, while the sum is 74.

The spelling of 12851978815676 in words is "twelve trillion, eight hundred fifty-one billion, nine hundred seventy-eight million, eight hundred fifteen thousand, six hundred seventy-six".