12766352178954 has 64 divisors (see below), whose sum is σ = 28457746513920. Its totient is φ = 3785552910720.

The previous prime is 12766352178953. The next prime is 12766352178991. The reversal of 12766352178954 is 45987125366721.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is not an unprimeable number, because it can be changed into a prime (12766352178953) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9820084 + ... + 11043855.

It is an arithmetic number, because the mean of its divisors is an integer number (444652289280).

Almost surely, 2^{12766352178954} is an apocalyptic number.

12766352178954 is an abundant number, since it is smaller than the sum of its proper divisors (15691394334966).

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

12766352178954 is a wasteful number, since it uses less digits than its factorization.

12766352178954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20864155.

The product of its digits is 152409600, while the sum is 66.

The spelling of 12766352178954 in words is "twelve trillion, seven hundred sixty-six billion, three hundred fifty-two million, one hundred seventy-eight thousand, nine hundred fifty-four".