6537261539 has 2 divisors, whose sum is σ = 6537261540. Its totient is φ = 6537261538.

The previous prime is 6537261509. The next prime is 6537261557. The reversal of 6537261539 is 9351627356.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6537261539 - 2¹² = 6537257443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6537261493 and 6537261502.

It is not a weakly prime, because it can be changed into another prime (6537261509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3268630769 + 3268630770.

It is an arithmetic number, because the mean of its divisors is an integer number (3268630770).

Almost surely, 2^6537261539 is an apocalyptic number.

6537261539 is a deficient number, since it is larger than the sum of its proper divisors (1).

6537261539 is an equidigital number, since it uses as much as digits as its factorization.

6537261539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1020600, while the sum is 47.

The square root of 6537261539 is about 80853.3335057993. Note that the first 3 decimals coincide. The cubic root of 6537261539 is about 1869.8149167197.

The spelling of 6537261539 in words is "six billion, five hundred thirty-seven million, two hundred sixty-one thousand, five hundred thirty-nine".