11947322126 has 16 divisors (see below), whose sum is σ = 18408533040. Its totient is φ = 5811200640.

The previous prime is 11947322111. The next prime is 11947322129. The reversal of 11947322126 is 62122374911.

It is a self number, because there is not a number n which added to its sum of digits gives 11947322126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11947322129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 588005 + ... + 607983.

It is an arithmetic number, because the mean of its divisors is an integer number (1150533315).

Almost surely, 2^11947322126 is an apocalyptic number.

11947322126 is a deficient number, since it is larger than the sum of its proper divisors (6461210914).

11947322126 is a wasteful number, since it uses less digits than its factorization.

11947322126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28099.

The product of its digits is 36288, while the sum is 38.

The spelling of 11947322126 in words is "eleven billion, nine hundred forty-seven million, three hundred twenty-two thousand, one hundred twenty-six".