14731678640 has 80 divisors (see below), whose sum is σ = 40406937600. Its totient is φ = 4887924480.

The previous prime is 14731678603. The next prime is 14731678673. The reversal of 14731678640 is 4687613741.

14731678640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 406940 + ... + 441659.

It is an arithmetic number, because the mean of its divisors is an integer number (505086720).

Almost surely, 2^14731678640 is an apocalyptic number.

14731678640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14731678640 is an abundant number, since it is smaller than the sum of its proper divisors (25675258960).

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

14731678640 is a wasteful number, since it uses less digits than its factorization.

14731678640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848650 (or 848644 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 47.

The spelling of 14731678640 in words is "fourteen billion, seven hundred thirty-one million, six hundred seventy-eight thousand, six hundred forty".