14646439680 has 144 divisors (see below), whose sum is σ = 47418756000. Its totient is φ = 3852140544.

The previous prime is 14646439657. The next prime is 14646439723. The reversal of 14646439680 is 8693464641.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254196 + ... + 306444.

Almost surely, 2^14646439680 is an apocalyptic number.

14646439680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14646439680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23709378000).

14646439680 is an abundant number, since it is smaller than the sum of its proper divisors (32772316320).

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

14646439680 is an equidigital number, since it uses as much as digits as its factorization.

14646439680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52346 (or 52332 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 51.

The spelling of 14646439680 in words is "fourteen billion, six hundred forty-six million, four hundred thirty-nine thousand, six hundred eighty".