126996934643039 has 4 divisors (see below), whose sum is σ = 130429284228024. Its totient is φ = 123564585058056.

The previous prime is 126996934642987. The next prime is 126996934643057. The reversal of 126996934643039 is 930346439699621.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 126996934643039 - 2¹² = 126996934638943 is a prime.

It is a super-2 number, since 2×126996934643039² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126996934043039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1716174792437 + ... + 1716174792510.

It is an arithmetic number, because the mean of its divisors is an integer number (32607321057006).

Almost surely, 2^{126996934643039} is an apocalyptic number.

126996934643039 is a deficient number, since it is larger than the sum of its proper divisors (3432349584985).

126996934643039 is an equidigital number, since it uses as much as digits as its factorization.

126996934643039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3432349584984.

The product of its (nonzero) digits is 1224440064, while the sum is 74.

The spelling of 126996934643039 in words is "one hundred twenty-six trillion, nine hundred ninety-six billion, nine hundred thirty-four million, six hundred forty-three thousand, thirty-nine".