11386125215809 has 4 divisors (see below), whose sum is σ = 11387375211220. Its totient is φ = 11384875220400.

The previous prime is 11386125215807. The next prime is 11386125215813. The reversal of 11386125215809 is 90851252168311.

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 6915848040000 + 4470277175809 = 2629800^2 + 2114303^2 .

It is a cyclic number.

It is not a de Polignac number, because 11386125215809 - 2¹ = 11386125215807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11386125215807) 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, 624984042 + ... + 625002259.

It is an arithmetic number, because the mean of its divisors is an integer number (2846843802805).

Almost surely, 2^{11386125215809} is an apocalyptic number.

It is an amenable number.

11386125215809 is a deficient number, since it is larger than the sum of its proper divisors (1249995411).

11386125215809 is an equidigital number, since it uses as much as digits as its factorization.

11386125215809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249995410.

The product of its (nonzero) digits is 1036800, while the sum is 52.

The spelling of 11386125215809 in words is "eleven trillion, three hundred eighty-six billion, one hundred twenty-five million, two hundred fifteen thousand, eight hundred nine".