11187698063 has 4 divisors (see below), whose sum is σ = 11425734240. Its totient is φ = 10949661888.

The previous prime is 11187698057. The next prime is 11187698077. The reversal of 11187698063 is 36089678111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36089678111 = 29 ⋅1244471659.

It is a cyclic number.

It is not a de Polignac number, because 11187698063 - 2⁶ = 11187697999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11187698083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119018018 + ... + 119018111.

It is an arithmetic number, because the mean of its divisors is an integer number (2856433560).

Almost surely, 2^11187698063 is an apocalyptic number.

11187698063 is a deficient number, since it is larger than the sum of its proper divisors (238036177).

11187698063 is an equidigital number, since it uses as much as digits as its factorization.

11187698063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238036176.

The product of its (nonzero) digits is 435456, while the sum is 50.

The spelling of 11187698063 in words is "eleven billion, one hundred eighty-seven million, six hundred ninety-eight thousand, sixty-three".