11687215822 has 16 divisors (see below), whose sum is σ = 18393001344. Its totient is φ = 5562396000.

The previous prime is 11687215801. The next prime is 11687215823. The reversal of 11687215822 is 22851278611.

11687215822 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11687215823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1541329 + ... + 1548892.

It is an arithmetic number, because the mean of its divisors is an integer number (1149562584).

Almost surely, 2^11687215822 is an apocalyptic number.

11687215822 is a deficient number, since it is larger than the sum of its proper divisors (6705785522).

11687215822 is a wasteful number, since it uses less digits than its factorization.

11687215822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3090315.

The product of its digits is 107520, while the sum is 43.

The spelling of 11687215822 in words is "eleven billion, six hundred eighty-seven million, two hundred fifteen thousand, eight hundred twenty-two".