11538389748 has 12 divisors (see below), whose sum is σ = 26922909440. Its totient is φ = 3846129912.

The previous prime is 11538389747. The next prime is 11538389773. The reversal of 11538389748 is 84798383511.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11538389743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480766228 + ... + 480766251.

Almost surely, 2^11538389748 is an apocalyptic number.

It is an amenable number.

11538389748 is an abundant number, since it is smaller than the sum of its proper divisors (15384519692).

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

11538389748 is a wasteful number, since it uses less digits than its factorization.

11538389748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961532486 (or 961532484 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 57.

The spelling of 11538389748 in words is "eleven billion, five hundred thirty-eight million, three hundred eighty-nine thousand, seven hundred forty-eight".