11149449090 has 128 divisors (see below), whose sum is σ = 30391925760. Its totient is φ = 2595048192.

The previous prime is 11149449049. The next prime is 11149449107. The reversal of 11149449090 is 9094494111.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5059929 + ... + 5062131.

It is an arithmetic number, because the mean of its divisors is an integer number (237436920).

Almost surely, 2^11149449090 is an apocalyptic number.

11149449090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11149449090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15195962880).

11149449090 is an abundant number, since it is smaller than the sum of its proper divisors (19242476670).

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

11149449090 is a wasteful number, since it uses less digits than its factorization.

11149449090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2928.

The product of its (nonzero) digits is 46656, while the sum is 42.

The spelling of 11149449090 in words is "eleven billion, one hundred forty-nine million, four hundred forty-nine thousand, ninety".