14564547840 has 144 divisors (see below), whose sum is σ = 47076982848. Its totient is φ = 3837001728.

The previous prime is 14564547839. The next prime is 14564547857. The reversal of 14564547840 is 4874546541.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 14564547840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 295872 + ... + 341568.

It is an arithmetic number, because the mean of its divisors is an integer number (326923492).

Almost surely, 2^14564547840 is an apocalyptic number.

14564547840 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 14564547840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23538491424).

14564547840 is an abundant number, since it is smaller than the sum of its proper divisors (32512435008).

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

14564547840 is an equidigital number, since it uses as much as digits as its factorization.

14564547840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45804 (or 45790 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 48.

The spelling of 14564547840 in words is "fourteen billion, five hundred sixty-four million, five hundred forty-seven thousand, eight hundred forty".