14520897820 has 288 divisors, whose sum is σ = 40259419200. Its totient is φ = 4342947840.

The previous prime is 14520897779. The next prime is 14520897827. The reversal of 14520897820 is 2879802541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14520897827) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10160866 + ... + 10162294.

It is an arithmetic number, because the mean of its divisors is an integer number (139789650).

Almost surely, 2^14520897820 is an apocalyptic number.

14520897820 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 14520897820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20129709600).

14520897820 is an abundant number, since it is smaller than the sum of its proper divisors (25738521380).

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

14520897820 is a wasteful number, since it uses less digits than its factorization.

14520897820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1509 (or 1496 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 46.

The spelling of 14520897820 in words is "fourteen billion, five hundred twenty million, eight hundred ninety-seven thousand, eight hundred twenty".