13863878547 has 16 divisors (see below), whose sum is σ = 18582754080. Its totient is φ = 9193881600.

The previous prime is 13863878543. The next prime is 13863878549. The reversal of 13863878547 is 74587836831.

It is a happy number.

It is not a de Polignac number, because 13863878547 - 2² = 13863878543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13863878543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 661347 + ... + 681987.

It is an arithmetic number, because the mean of its divisors is an integer number (1161422130).

Almost surely, 2^13863878547 is an apocalyptic number.

13863878547 is a deficient number, since it is larger than the sum of its proper divisors (4718875533).

13863878547 is a wasteful number, since it uses less digits than its factorization.

13863878547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21814.

The product of its digits is 27095040, while the sum is 60.

The spelling of 13863878547 in words is "thirteen billion, eight hundred sixty-three million, eight hundred seventy-eight thousand, five hundred forty-seven".