11389038912 has 224 divisors, whose sum is σ = 34902282240. Its totient is φ = 3637716480.

The previous prime is 11389038911. The next prime is 11389038923. The reversal of 11389038912 is 21983098311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11389038911) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5730783 + ... + 5732769.

It is an arithmetic number, because the mean of its divisors is an integer number (155813760).

Almost surely, 2^11389038912 is an apocalyptic number.

11389038912 is a gapful number since it is divisible by the number (12) 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 11389038912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17451141120).

11389038912 is an abundant number, since it is smaller than the sum of its proper divisors (23513243328).

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

11389038912 is a wasteful number, since it uses less digits than its factorization.

11389038912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2146 (or 2130 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The spelling of 11389038912 in words is "eleven billion, three hundred eighty-nine million, thirty-eight thousand, nine hundred twelve".