13966523878 has 16 divisors (see below), whose sum is σ = 20999183904. Its totient is φ = 6966812160.

The previous prime is 13966523833. The next prime is 13966523891. The reversal of 13966523878 is 87832566931.

13966523878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2664276 + ... + 2669512.

It is an arithmetic number, because the mean of its divisors is an integer number (1312448994).

Almost surely, 2^13966523878 is an apocalyptic number.

13966523878 is a deficient number, since it is larger than the sum of its proper divisors (7032660026).

13966523878 is a wasteful number, since it uses less digits than its factorization.

13966523878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8127.

The product of its digits is 13063680, while the sum is 58.

The spelling of 13966523878 in words is "thirteen billion, nine hundred sixty-six million, five hundred twenty-three thousand, eight hundred seventy-eight".