11489452128 has 576 divisors, whose sum is σ = 43677204480. Its totient is φ = 2883340800.

The previous prime is 11489452109. The next prime is 11489452147. The reversal of 11489452128 is 82125498411.

11489452128 is a `hidden beast` number, since 1 + 1 + 489 + 45 + 2 + 128 = 666.

It is an interprime number because it is at equal distance from previous prime (11489452109) and next prime (11489452147).

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 18561003 + ... + 18561621.

It is an arithmetic number, because the mean of its divisors is an integer number (75828480).

Almost surely, 2^11489452128 is an apocalyptic number.

11489452128 is a gapful number since it is divisible by the number (18) 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 11489452128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21838602240).

11489452128 is an abundant number, since it is smaller than the sum of its proper divisors (32187752352).

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

11489452128 is a wasteful number, since it uses less digits than its factorization.

11489452128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693 (or 673 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The spelling of 11489452128 in words is "eleven billion, four hundred eighty-nine million, four hundred fifty-two thousand, one hundred twenty-eight".