11187441857245 has 4 divisors (see below), whose sum is σ = 13424930228700. Its totient is φ = 8949953485792.

The previous prime is 11187441857239. The next prime is 11187441857269. The reversal of 11187441857245 is 54275814478111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7895532390201 + 3291909467044 = 2809899^2 + 1814362^2 .

It is a cyclic number.

It is not a de Polignac number, because 11187441857245 - 2³ = 11187441857237 is a prime.

It is a super-3 number, since 3×11187441857245³ (a number of 40 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11187441857245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1118744185720 + ... + 1118744185729.

It is an arithmetic number, because the mean of its divisors is an integer number (3356232557175).

Almost surely, 2^{11187441857245} is an apocalyptic number.

It is an amenable number.

11187441857245 is a deficient number, since it is larger than the sum of its proper divisors (2237488371455).

11187441857245 is an equidigital number, since it uses as much as digits as its factorization.

11187441857245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2237488371454.

The product of its digits is 10035200, while the sum is 58.

The spelling of 11187441857245 in words is "eleven trillion, one hundred eighty-seven billion, four hundred forty-one million, eight hundred fifty-seven thousand, two hundred forty-five".