126509562659 has 2 divisors, whose sum is σ = 126509562660. Its totient is φ = 126509562658.

The previous prime is 126509562511. The next prime is 126509562671. The reversal of 126509562659 is 956265905621.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126509562659 is a prime.

It is not a weakly prime, because it can be changed into another prime (126509562689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63254781329 + 63254781330.

It is an arithmetic number, because the mean of its divisors is an integer number (63254781330).

Almost surely, 2^126509562659 is an apocalyptic number.

126509562659 is a deficient number, since it is larger than the sum of its proper divisors (1).

126509562659 is an equidigital number, since it uses as much as digits as its factorization.

126509562659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748000, while the sum is 56.

The spelling of 126509562659 in words is "one hundred twenty-six billion, five hundred nine million, five hundred sixty-two thousand, six hundred fifty-nine".