11888195089 has 9 divisors (see below), whose sum is σ = 12012126217. Its totient is φ = 11765532964.

The previous prime is 11888195083. The next prime is 11888195107. The reversal of 11888195089 is 98059188811.

It is a happy number.

The square root of 11888195089 is 109033.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 11888195089 - 2¹³ = 11888186897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11888195083) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 11666022 + ... + 11667040.

Almost surely, 2^11888195089 is an apocalyptic number.

11888195089 is the 109033-rd square number.

11888195089 is the 54517-th centered octagonal number.

It is an amenable number.

11888195089 is a deficient number, since it is larger than the sum of its proper divisors (123931128).

11888195089 is an frugal number, since it uses more digits than its factorization.

11888195089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2252 (or 1126 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 58.

The spelling of 11888195089 in words is "eleven billion, eight hundred eighty-eight million, one hundred ninety-five thousand, eighty-nine".