6750042539 has 2 divisors, whose sum is σ = 6750042540. Its totient is φ = 6750042538.

The previous prime is 6750042521. The next prime is 6750042577. The reversal of 6750042539 is 9352400576.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6750042539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6750042496 and 6750042505.

It is not a weakly prime, because it can be changed into another prime (6750042589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3375021269 + 3375021270.

It is an arithmetic number, because the mean of its divisors is an integer number (3375021270).

Almost surely, 2^6750042539 is an apocalyptic number.

6750042539 is a deficient number, since it is larger than the sum of its proper divisors (1).

6750042539 is an equidigital number, since it uses as much as digits as its factorization.

6750042539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 41.

The square root of 6750042539 is about 82158.6425094767. The cubic root of 6750042539 is about 1889.8855448919.

The spelling of 6750042539 in words is "six billion, seven hundred fifty million, forty-two thousand, five hundred thirty-nine".