11861126742 has 16 divisors (see below), whose sum is σ = 23724372672. Its totient is φ = 3953355720.

The previous prime is 11861126731. The next prime is 11861126791. The reversal of 11861126742 is 24762116811.

It is a self number, because there is not a number n which added to its sum of digits gives 11861126742.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10228 + ... + 154359.

It is an arithmetic number, because the mean of its divisors is an integer number (1482773292).

Almost surely, 2^11861126742 is an apocalyptic number.

11861126742 is an abundant number, since it is smaller than the sum of its proper divisors (11863245930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11861126742 is a wasteful number, since it uses less digits than its factorization.

11861126742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176603.

The product of its digits is 32256, while the sum is 39.

The spelling of 11861126742 in words is "eleven billion, eight hundred sixty-one million, one hundred twenty-six thousand, seven hundred forty-two".