14847632381 has 4 divisors (see below), whose sum is σ = 14847896700. Its totient is φ = 14847368064.

The previous prime is 14847632323. The next prime is 14847632383. The reversal of 14847632381 is 18323674841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18323674841 = 19 ⋅964403939.

It can be written as a sum of positive squares in 2 ways, for example, as 14093251225 + 754381156 = 118715^2 + 27466^2 .

It is a cyclic number.

It is not a de Polignac number, because 14847632381 - 2¹⁴ = 14847615997 is a prime.

It is a super-2 number, since 2×14847632381² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14847632383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10676 + ... + 172653.

It is an arithmetic number, because the mean of its divisors is an integer number (3711974175).

Almost surely, 2^14847632381 is an apocalyptic number.

It is an amenable number.

14847632381 is a deficient number, since it is larger than the sum of its proper divisors (264319).

14847632381 is an equidigital number, since it uses as much as digits as its factorization.

14847632381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264318.

The product of its digits is 774144, while the sum is 47.

The spelling of 14847632381 in words is "fourteen billion, eight hundred forty-seven million, six hundred thirty-two thousand, three hundred eighty-one".