11385326815 has 16 divisors (see below), whose sum is σ = 13724212320. Its totient is φ = 9067104640.

The previous prime is 11385326809. The next prime is 11385326873. The reversal of 11385326815 is 51862358311.

It is a happy number.

It is not a de Polignac number, because 11385326815 - 2⁵ = 11385326783 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2199180 + ... + 2204350.

It is an arithmetic number, because the mean of its divisors is an integer number (857763270).

Almost surely, 2^11385326815 is an apocalyptic number.

11385326815 is a deficient number, since it is larger than the sum of its proper divisors (2338885505).

11385326815 is a wasteful number, since it uses less digits than its factorization.

11385326815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7082.

The product of its digits is 172800, while the sum is 43.

The spelling of 11385326815 in words is "eleven billion, three hundred eighty-five million, three hundred twenty-six thousand, eight hundred fifteen".