6428143539 has 12 divisors (see below), whose sum is σ = 9584615872. Its totient is φ = 4147189200.

The previous prime is 6428143529. The next prime is 6428143559. The reversal of 6428143539 is 9353418246.

It is not a de Polignac number, because 6428143539 - 2⁵ = 6428143507 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6428143494 and 6428143503.

It is not an unprimeable number, because it can be changed into a prime (6428143529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11519692 + ... + 11520249.

Almost surely, 2^6428143539 is an apocalyptic number.

6428143539 is a deficient number, since it is larger than the sum of its proper divisors (3156472333).

6428143539 is a wasteful number, since it uses less digits than its factorization.

6428143539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23039978 (or 23039975 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 6428143539 is about 80175.7041690312. The cubic root of 6428143539 is about 1859.3530276749.

The spelling of 6428143539 in words is "six billion, four hundred twenty-eight million, one hundred forty-three thousand, five hundred thirty-nine".