11543425980 has 192 divisors, whose sum is σ = 34100183040. Its totient is φ = 2913926400.

The previous prime is 11543425963. The next prime is 11543426039. The reversal of 11543425980 is 8952434511.

It is a congruent number.

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, 26294601 + ... + 26295039.

It is an arithmetic number, because the mean of its divisors is an integer number (177605120).

Almost surely, 2^11543425980 is an apocalyptic number.

11543425980 is a gapful number since it is divisible by the number (10) 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 11543425980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17050091520).

11543425980 is an abundant number, since it is smaller than the sum of its proper divisors (22556757060).

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

11543425980 is a wasteful number, since it uses less digits than its factorization.

11543425980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760 (or 758 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 11543425980 in words is "eleven billion, five hundred forty-three million, four hundred twenty-five thousand, nine hundred eighty".