14619944820 has 192 divisors, whose sum is σ = 47538812160. Its totient is φ = 3326054400.

The previous prime is 14619944809. The next prime is 14619944837. The reversal of 14619944820 is 2844991641.

It is a self number, because there is not a number n which added to its sum of digits gives 14619944820.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 595590 + ... + 619650.

It is an arithmetic number, because the mean of its divisors is an integer number (247597980).

Almost surely, 2^14619944820 is an apocalyptic number.

14619944820 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 14619944820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23769406080).

14619944820 is an abundant number, since it is smaller than the sum of its proper divisors (32918867340).

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

14619944820 is a wasteful number, since it uses less digits than its factorization.

14619944820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24146 (or 24144 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The spelling of 14619944820 in words is "fourteen billion, six hundred nineteen million, nine hundred forty-four thousand, eight hundred twenty".