14487646440 has 64 divisors (see below), whose sum is σ = 43490079360. Its totient is φ = 3860960000.

The previous prime is 14487646421. The next prime is 14487646441. The reversal of 14487646440 is 4464678441.

It is a self number, because there is not a number n which added to its sum of digits gives 14487646440.

It is not an unprimeable number, because it can be changed into a prime (14487646441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159565 + ... + 233315.

It is an arithmetic number, because the mean of its divisors is an integer number (679532490).

Almost surely, 2^14487646440 is an apocalyptic number.

14487646440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14487646440 is an abundant number, since it is smaller than the sum of its proper divisors (29002432920).

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

14487646440 is a wasteful number, since it uses less digits than its factorization.

14487646440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75402 (or 75398 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 48.

The spelling of 14487646440 in words is "fourteen billion, four hundred eighty-seven million, six hundred forty-six thousand, four hundred forty".