16731257343 has 4 divisors (see below), whose sum is σ = 22308343128. Its totient is φ = 11154171560.

The previous prime is 16731257299. The next prime is 16731257351. The reversal of 16731257343 is 34375213761.

It is a happy number.

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 16731257343 - 2⁹ = 16731256831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16731257295 and 16731257304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16731257363) 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, 2788542888 + ... + 2788542893.

It is an arithmetic number, because the mean of its divisors is an integer number (5577085782).

Almost surely, 2^16731257343 is an apocalyptic number.

16731257343 is a deficient number, since it is larger than the sum of its proper divisors (5577085785).

16731257343 is an equidigital number, since it uses as much as digits as its factorization.

16731257343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5577085784.

The product of its digits is 317520, while the sum is 42.

The spelling of 16731257343 in words is "sixteen billion, seven hundred thirty-one million, two hundred fifty-seven thousand, three hundred forty-three".