11187007808 has 14 divisors (see below), whose sum is σ = 22199218746. Its totient is φ = 5593503872.

The previous prime is 11187007771. The next prime is 11187007823. The reversal of 11187007808 is 80870078111.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10484121664 + 702886144 = 102392^2 + 26512^2 .

It is a super-3 number, since 3×11187007808³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87398435 + ... + 87398562.

Almost surely, 2^11187007808 is an apocalyptic number.

It is an amenable number.

11187007808 is a deficient number, since it is larger than the sum of its proper divisors (11012210938).

11187007808 is an equidigital number, since it uses as much as digits as its factorization.

11187007808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174797009 (or 174796999 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 41.

The spelling of 11187007808 in words is "eleven billion, one hundred eighty-seven million, seven thousand, eight hundred eight".