126956961107 has 4 divisors (see below), whose sum is σ = 126957989496. Its totient is φ = 126955932720.

The previous prime is 126956961091. The next prime is 126956961119. The reversal of 126956961107 is 701169659621.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 701169659621 = 59 ⋅11884231519.

It is a cyclic number.

It is not a de Polignac number, because 126956961107 - 2⁴ = 126956961091 is a prime.

It is a super-2 number, since 2×126956961107² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126956961007) 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 in 3 ways as a sum of consecutive naturals, for example, 298994 + ... + 585927.

It is an arithmetic number, because the mean of its divisors is an integer number (31739497374).

Almost surely, 2^126956961107 is an apocalyptic number.

126956961107 is a deficient number, since it is larger than the sum of its proper divisors (1028389).

126956961107 is an equidigital number, since it uses as much as digits as its factorization.

126956961107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028388.

The product of its (nonzero) digits is 1224720, while the sum is 53.

The spelling of 126956961107 in words is "one hundred twenty-six billion, nine hundred fifty-six million, nine hundred sixty-one thousand, one hundred seven".