14981321238 has 32 divisors (see below), whose sum is σ = 33139561056. Its totient is φ = 4485051648.

The previous prime is 14981321233. The next prime is 14981321249. The reversal of 14981321238 is 83212318941.

It is a super-2 number, since 2×14981321238² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 14981321238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14981321231) 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, 2592631 + ... + 2598402.

It is an arithmetic number, because the mean of its divisors is an integer number (1035611283).

Almost surely, 2^14981321238 is an apocalyptic number.

14981321238 is an abundant number, since it is smaller than the sum of its proper divisors (18158239818).

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

14981321238 is a wasteful number, since it uses less digits than its factorization.

14981321238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5191088.

The product of its digits is 82944, while the sum is 42.

The spelling of 14981321238 in words is "fourteen billion, nine hundred eighty-one million, three hundred twenty-one thousand, two hundred thirty-eight".