126613313579 has 2 divisors, whose sum is σ = 126613313580. Its totient is φ = 126613313578.

The previous prime is 126613313549. The next prime is 126613313591. The reversal of 126613313579 is 975313316621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126613313579 - 2¹² = 126613309483 is a prime.

It is not a weakly prime, because it can be changed into another prime (126613313549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63306656789 + 63306656790.

It is an arithmetic number, because the mean of its divisors is an integer number (63306656790).

Almost surely, 2^126613313579 is an apocalyptic number.

126613313579 is a deficient number, since it is larger than the sum of its proper divisors (1).

126613313579 is an equidigital number, since it uses as much as digits as its factorization.

126613313579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 612360, while the sum is 47.

The spelling of 126613313579 in words is "one hundred twenty-six billion, six hundred thirteen million, three hundred thirteen thousand, five hundred seventy-nine".