11945263126 has 4 divisors (see below), whose sum is σ = 17917894692. Its totient is φ = 5972631562.

The previous prime is 11945263123. The next prime is 11945263147. The reversal of 11945263126 is 62136254911.

11945263126 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62136254911 = 70537 ⋅880903.

It is a super-2 number, since 2×11945263126² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11945263123) by changing a digit.

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 as a sum of consecutive naturals, namely, 2986315780 + ... + 2986315783.

It is an arithmetic number, because the mean of its divisors is an integer number (4479473673).

Almost surely, 2^11945263126 is an apocalyptic number.

11945263126 is a deficient number, since it is larger than the sum of its proper divisors (5972631566).

11945263126 is an equidigital number, since it uses as much as digits as its factorization.

11945263126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5972631565.

The product of its digits is 77760, while the sum is 40.

The spelling of 11945263126 in words is "eleven billion, nine hundred forty-five million, two hundred sixty-three thousand, one hundred twenty-six".