14381431893 has 24 divisors (see below), whose sum is σ = 20831655000. Its totient is φ = 9560678400.

The previous prime is 14381431861. The next prime is 14381431901. The reversal of 14381431893 is 39813418341.

It can be written as a sum of positive squares in 4 ways, for example, as 2304324 + 14379127569 = 1518^2 + 119913^2 .

It is not a de Polignac number, because 14381431893 - 2⁵ = 14381431861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14381431693) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7564243 + ... + 7566143.

It is an arithmetic number, because the mean of its divisors is an integer number (867985625).

Almost surely, 2^14381431893 is an apocalyptic number.

It is an amenable number.

14381431893 is a deficient number, since it is larger than the sum of its proper divisors (6450223107).

14381431893 is a wasteful number, since it uses less digits than its factorization.

14381431893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3829 (or 3826 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The spelling of 14381431893 in words is "fourteen billion, three hundred eighty-one million, four hundred thirty-one thousand, eight hundred ninety-three".