14328731778 has 16 divisors (see below), whose sum is σ = 28661078880. Its totient is φ = 4775641376.

The previous prime is 14328731773. The next prime is 14328731821. The reversal of 14328731778 is 87713782341.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 14328731778.

It is not an unprimeable number, because it can be changed into a prime (14328731773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97683 + ... + 195446.

It is an arithmetic number, because the mean of its divisors is an integer number (1791317430).

Almost surely, 2^14328731778 is an apocalyptic number.

14328731778 is an abundant number, since it is smaller than the sum of its proper divisors (14332347102).

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

14328731778 is a wasteful number, since it uses less digits than its factorization.

14328731778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301281.

The product of its digits is 1580544, while the sum is 51.

The spelling of 14328731778 in words is "fourteen billion, three hundred twenty-eight million, seven hundred thirty-one thousand, seven hundred seventy-eight".