11938575520 has 96 divisors (see below), whose sum is σ = 29719872000. Its totient is φ = 4519443456.

The previous prime is 11938575487. The next prime is 11938575559. The reversal of 11938575520 is 2557583911.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4975281 + ... + 4977679.

It is an arithmetic number, because the mean of its divisors is an integer number (309582000).

Almost surely, 2^11938575520 is an apocalyptic number.

11938575520 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 11938575520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14859936000).

11938575520 is an abundant number, since it is smaller than the sum of its proper divisors (17781296480).

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

11938575520 is a wasteful number, since it uses less digits than its factorization.

11938575520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4070 (or 4062 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 46.

The spelling of 11938575520 in words is "eleven billion, nine hundred thirty-eight million, five hundred seventy-five thousand, five hundred twenty".