12706779878202 has 32 divisors (see below), whose sum is σ = 26095213647360. Its totient is φ = 4123378286640.

The previous prime is 12706779878173. The next prime is 12706779878291. The reversal of 12706779878202 is 20287897760721.

It is a super-2 number, since 2×12706779878202² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174210424 + ... + 174283347.

It is an arithmetic number, because the mean of its divisors is an integer number (815475426480).

Almost surely, 2^{12706779878202} is an apocalyptic number.

12706779878202 is an abundant number, since it is smaller than the sum of its proper divisors (13388433769158).

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

12706779878202 is a wasteful number, since it uses less digits than its factorization.

12706779878202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348493938.

The product of its (nonzero) digits is 66382848, while the sum is 66.

The spelling of 12706779878202 in words is "twelve trillion, seven hundred six billion, seven hundred seventy-nine million, eight hundred seventy-eight thousand, two hundred two".