14678399231 has 4 divisors (see below), whose sum is σ = 14706573264. Its totient is φ = 14650225200.

The previous prime is 14678399143. The next prime is 14678399243. The reversal of 14678399231 is 13299387641.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14678399231 is a prime.

It is a super-2 number, since 2×14678399231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14678396231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14086235 + ... + 14087276.

It is an arithmetic number, because the mean of its divisors is an integer number (3676643316).

Almost surely, 2^14678399231 is an apocalyptic number.

14678399231 is a deficient number, since it is larger than the sum of its proper divisors (28174033).

14678399231 is an equidigital number, since it uses as much as digits as its factorization.

14678399231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28174032.

The product of its digits is 1959552, while the sum is 53.

The spelling of 14678399231 in words is "fourteen billion, six hundred seventy-eight million, three hundred ninety-nine thousand, two hundred thirty-one".