11388168785 has 8 divisors (see below), whose sum is σ = 15618060096. Its totient is φ = 7809030000.

The previous prime is 11388168769. The next prime is 11388168791. The reversal of 11388168785 is 58786188311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11388168785 - 2⁴ = 11388168769 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11388168785.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162688091 + ... + 162688160.

It is an arithmetic number, because the mean of its divisors is an integer number (1952257512).

Almost surely, 2^11388168785 is an apocalyptic number.

It is an amenable number.

11388168785 is a deficient number, since it is larger than the sum of its proper divisors (4229891311).

11388168785 is an equidigital number, since it uses as much as digits as its factorization.

11388168785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325376263.

The product of its digits is 2580480, while the sum is 56.

The spelling of 11388168785 in words is "eleven billion, three hundred eighty-eight million, one hundred sixty-eight thousand, seven hundred eighty-five".