126308729039 has 2 divisors, whose sum is σ = 126308729040. Its totient is φ = 126308729038.

The previous prime is 126308728963. The next prime is 126308729081. The reversal of 126308729039 is 930927803621.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (930927803621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126308729039 - 2⁸ = 126308728783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126308729089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63154364519 + 63154364520.

It is an arithmetic number, because the mean of its divisors is an integer number (63154364520).

Almost surely, 2^126308729039 is an apocalyptic number.

126308729039 is a deficient number, since it is larger than the sum of its proper divisors (1).

126308729039 is an equidigital number, since it uses as much as digits as its factorization.

126308729039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 126308729039 in words is "one hundred twenty-six billion, three hundred eight million, seven hundred twenty-nine thousand, thirty-nine".