11732375172 has 144 divisors (see below), whose sum is σ = 34541857728. Its totient is φ = 3077867520.

The previous prime is 11732375167. The next prime is 11732375201. The reversal of 11732375172 is 27157323711.

It is a self number, because there is not a number n which added to its sum of digits gives 11732375172.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 395523 + ... + 424149.

It is an arithmetic number, because the mean of its divisors is an integer number (239874012).

Almost surely, 2^11732375172 is an apocalyptic number.

11732375172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11732375172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17270928864).

11732375172 is an abundant number, since it is smaller than the sum of its proper divisors (22809482556).

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

11732375172 is a wasteful number, since it uses less digits than its factorization.

11732375172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28706 (or 28697 counting only the distinct ones).

The product of its digits is 61740, while the sum is 39.

Adding to 11732375172 its reverse (27157323711), we get a palindrome (38889698883).

The spelling of 11732375172 in words is "eleven billion, seven hundred thirty-two million, three hundred seventy-five thousand, one hundred seventy-two".