11139448320 has 1920 divisors, whose sum is σ = 56426388480. Its totient is φ = 2043740160.

The previous prime is 11139448289. The next prime is 11139448321. The reversal of 11139448320 is 2384493111.

It is a tau number, because it is divible by the number of its divisors (1920).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11139448321) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 484323829 + ... + 484323851.

It is an arithmetic number, because the mean of its divisors is an integer number (29388744).

Almost surely, 2^11139448320 is an apocalyptic number.

11139448320 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 11139448320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28213194240).

11139448320 is an abundant number, since it is smaller than the sum of its proper divisors (45286940160).

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

11139448320 is a wasteful number, since it uses less digits than its factorization.

11139448320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 11139448320 in words is "eleven billion, one hundred thirty-nine million, four hundred forty-eight thousand, three hundred twenty".