126613732507 has 2 divisors, whose sum is σ = 126613732508. Its totient is φ = 126613732506.

The previous prime is 126613732459. The next prime is 126613732547. The reversal of 126613732507 is 705237316621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126613732507 - 2¹⁹ = 126613208219 is a prime.

It is not a weakly prime, because it can be changed into another prime (126613732547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63306866253 + 63306866254.

It is an arithmetic number, because the mean of its divisors is an integer number (63306866254).

Almost surely, 2^126613732507 is an apocalyptic number.

126613732507 is a deficient number, since it is larger than the sum of its proper divisors (1).

126613732507 is an equidigital number, since it uses as much as digits as its factorization.

126613732507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 317520, while the sum is 43.

The spelling of 126613732507 in words is "one hundred twenty-six billion, six hundred thirteen million, seven hundred thirty-two thousand, five hundred seven".