14444477778 has 8 divisors (see below), whose sum is σ = 28888955568. Its totient is φ = 4814825924.

The previous prime is 14444477777. The next prime is 14444477809. The reversal of 14444477778 is 87777444441.

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

14444477778 is an admirable number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (14444477777) 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, 1203706476 + ... + 1203706487.

It is an arithmetic number, because the mean of its divisors is an integer number (3611119446).

Almost surely, 2^14444477778 is an apocalyptic number.

14444477778 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

14444477778 is a wasteful number, since it uses less digits than its factorization.

14444477778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2407412968.

The product of its digits is 19668992, while the sum is 57.

It can be divided in two parts, 144444 and 77778, that added together give a palindrome (222222).

The spelling of 14444477778 in words is "fourteen billion, four hundred forty-four million, four hundred seventy-seven thousand, seven hundred seventy-eight".