14991381582 has 32 divisors (see below), whose sum is σ = 30330493440. Its totient is φ = 4939354080.

The previous prime is 14991381571. The next prime is 14991381589. The reversal of 14991381582 is 28518319941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14991381589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311919 + ... + 356757.

It is an arithmetic number, because the mean of its divisors is an integer number (947827920).

Almost surely, 2^14991381582 is an apocalyptic number.

14991381582 is an abundant number, since it is smaller than the sum of its proper divisors (15339111858).

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

14991381582 is a wasteful number, since it uses less digits than its factorization.

14991381582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45488.

The product of its digits is 622080, while the sum is 51.

The spelling of 14991381582 in words is "fourteen billion, nine hundred ninety-one million, three hundred eighty-one thousand, five hundred eighty-two".