11549288090 has 16 divisors (see below), whose sum is σ = 20847616488. Its totient is φ = 4606626816.

The previous prime is 11549288089. The next prime is 11549288099. The reversal of 11549288090 is 9088294511.

11549288090 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10405428049 + 1143860041 = 102007^2 + 33821^2 .

It is not an unprimeable number, because it can be changed into a prime (11549288099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1632347 + ... + 1639406.

Almost surely, 2^11549288090 is an apocalyptic number.

11549288090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11549288090 is a deficient number, since it is larger than the sum of its proper divisors (9298328398).

11549288090 is a wasteful number, since it uses less digits than its factorization.

11549288090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3272113.

The product of its (nonzero) digits is 207360, while the sum is 47.

The spelling of 11549288090 in words is "eleven billion, five hundred forty-nine million, two hundred eighty-eight thousand, ninety".