11988928011432 has 256 divisors, whose sum is σ = 34620842188800. Its totient is φ = 3434572800000.

The previous prime is 11988928011349. The next prime is 11988928011479. The reversal of 11988928011432 is 23411082988911.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 60218932 + ... + 60417692.

It is an arithmetic number, because the mean of its divisors is an integer number (135237664800).

Almost surely, 2^{11988928011432} is an apocalyptic number.

11988928011432 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 11988928011432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17310421094400).

11988928011432 is an abundant number, since it is smaller than the sum of its proper divisors (22631914177368).

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

11988928011432 is a wasteful number, since it uses less digits than its factorization.

11988928011432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199088 (or 199084 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 57.

The spelling of 11988928011432 in words is "eleven trillion, nine hundred eighty-eight billion, nine hundred twenty-eight million, eleven thousand, four hundred thirty-two".