14728493431 has 4 divisors (see below), whose sum is σ = 14758737232. Its totient is φ = 14698249632.

The previous prime is 14728493411. The next prime is 14728493449. The reversal of 14728493431 is 13439482741.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 14728493431 - 2¹⁹ = 14727969143 is a prime.

It is a super-2 number, since 2×14728493431² (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 (14728493411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15121170 + ... + 15122143.

It is an arithmetic number, because the mean of its divisors is an integer number (3689684308).

Almost surely, 2^14728493431 is an apocalyptic number.

14728493431 is a deficient number, since it is larger than the sum of its proper divisors (30243801).

14728493431 is an equidigital number, since it uses as much as digits as its factorization.

14728493431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30243800.

The product of its digits is 580608, while the sum is 46.

The spelling of 14728493431 in words is "fourteen billion, seven hundred twenty-eight million, four hundred ninety-three thousand, four hundred thirty-one".