14381463981 has 16 divisors (see below), whose sum is σ = 19541969280. Its totient is φ = 9404391360.

The previous prime is 14381463977. The next prime is 14381463997. The reversal of 14381463981 is 18936418341.

It is not a de Polignac number, because 14381463981 - 2² = 14381463977 is a prime.

It is a super-2 number, since 2×14381463981² (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 14381463981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14381465981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 816336 + ... + 833766.

It is an arithmetic number, because the mean of its divisors is an integer number (1221373080).

Almost surely, 2^14381463981 is an apocalyptic number.

It is an amenable number.

14381463981 is a deficient number, since it is larger than the sum of its proper divisors (5160505299).

14381463981 is a wasteful number, since it uses less digits than its factorization.

14381463981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22676.

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

The spelling of 14381463981 in words is "fourteen billion, three hundred eighty-one million, four hundred sixty-three thousand, nine hundred eighty-one".