14491381520 has 480 divisors, whose sum is σ = 45483088896. Its totient is φ = 4238438400.

The previous prime is 14491381507. The next prime is 14491381573. The reversal of 14491381520 is 2518319441.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 49458494 + ... + 49458786.

Almost surely, 2^14491381520 is an apocalyptic number.

14491381520 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 14491381520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22741544448).

14491381520 is an abundant number, since it is smaller than the sum of its proper divisors (30991707376).

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

14491381520 is a wasteful number, since it uses less digits than its factorization.

14491381520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 14491381520 in words is "fourteen billion, four hundred ninety-one million, three hundred eighty-one thousand, five hundred twenty".