126837705122 has 6 divisors (see below), whose sum is σ = 190257313179. Its totient is φ = 63418600730.

The previous prime is 126837705107. The next prime is 126837705133. The reversal of 126837705122 is 221507738621.

It can be written as a sum of positive squares in only one way, i.e., 63418852561 + 63418852561 = 251831^2 + 251831^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=251831.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 377747 + ... + 629577.

Almost surely, 2^126837705122 is an apocalyptic number.

126837705122 is a deficient number, since it is larger than the sum of its proper divisors (63419608057).

126837705122 is an frugal number, since it uses more digits than its factorization.

126837705122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503664 (or 251833 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 126837705122 in words is "one hundred twenty-six billion, eight hundred thirty-seven million, seven hundred five thousand, one hundred twenty-two".