11172685242 has 32 divisors (see below), whose sum is σ = 22959176832. Its totient is φ = 3622014144.

The previous prime is 11172685241. The next prime is 11172685247. The reversal of 11172685242 is 24258627111.

It is a self number, because there is not a number n which added to its sum of digits gives 11172685242.

It is not an unprimeable number, because it can be changed into a prime (11172685241) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 578128 + ... + 597140.

It is an arithmetic number, because the mean of its divisors is an integer number (717474276).

Almost surely, 2^11172685242 is an apocalyptic number.

11172685242 is an abundant number, since it is smaller than the sum of its proper divisors (11786491590).

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

11172685242 is a wasteful number, since it uses less digits than its factorization.

11172685242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21702.

The product of its digits is 53760, while the sum is 39.

The spelling of 11172685242 in words is "eleven billion, one hundred seventy-two million, six hundred eighty-five thousand, two hundred forty-two".