6456231543 has 4 divisors (see below), whose sum is σ = 8608308728. Its totient is φ = 4304154360.

The previous prime is 6456231541. The next prime is 6456231581. The reversal of 6456231543 is 3451326546.

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

It is not a de Polignac number, because 6456231543 - 2¹ = 6456231541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6456231541) 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, 1076038588 + ... + 1076038593.

It is an arithmetic number, because the mean of its divisors is an integer number (2152077182).

Almost surely, 2^6456231543 is an apocalyptic number.

6456231543 is a deficient number, since it is larger than the sum of its proper divisors (2152077185).

6456231543 is a wasteful number, since it uses less digits than its factorization.

6456231543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152077184.

The product of its digits is 259200, while the sum is 39.

The square root of 6456231543 is about 80350.6785472282. The cubic root of 6456231543 is about 1862.0572626790.

The spelling of 6456231543 in words is "six billion, four hundred fifty-six million, two hundred thirty-one thousand, five hundred forty-three".