11898334528 has 56 divisors (see below), whose sum is σ = 23918509440. Its totient is φ = 5871866880.

The previous prime is 11898334523. The next prime is 11898334541. The reversal of 11898334528 is 82543389811.

It is a happy number.

It is a super-5 number, since 5×11898334528⁵ (a number of 52 digits) contains 55555 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11898334523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3934425 + ... + 3937447.

It is an arithmetic number, because the mean of its divisors is an integer number (427116240).

Almost surely, 2^11898334528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11898334528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11959254720).

11898334528 is an abundant number, since it is smaller than the sum of its proper divisors (12020174912).

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

11898334528 is an equidigital number, since it uses as much as digits as its factorization.

11898334528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3815 (or 3805 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 52.

The spelling of 11898334528 in words is "eleven billion, eight hundred ninety-eight million, three hundred thirty-four thousand, five hundred twenty-eight".