13897878422 has 8 divisors (see below), whose sum is σ = 20847319272. Its totient is φ = 6948772000.

The previous prime is 13897878391. The next prime is 13897878473. The reversal of 13897878422 is 22487879831.

13897878422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 109397 + ... + 199407.

It is an arithmetic number, because the mean of its divisors is an integer number (2605914909).

Almost surely, 2^13897878422 is an apocalyptic number.

13897878422 is a deficient number, since it is larger than the sum of its proper divisors (6949440850).

13897878422 is an equidigital number, since it uses as much as digits as its factorization.

13897878422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167214.

The product of its digits is 10838016, while the sum is 59.

The spelling of 13897878422 in words is "thirteen billion, eight hundred ninety-seven million, eight hundred seventy-eight thousand, four hundred twenty-two".