11862817087 has 4 divisors (see below), whose sum is σ = 12941255016. Its totient is φ = 10784379160.

The previous prime is 11862817079. The next prime is 11862817093. The reversal of 11862817087 is 78071826811.

11862817087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11862817087 - 2³ = 11862817079 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 11862817087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11862817007) 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 3 ways as a sum of consecutive naturals, for example, 539218948 + ... + 539218969.

It is an arithmetic number, because the mean of its divisors is an integer number (3235313754).

Almost surely, 2^11862817087 is an apocalyptic number.

11862817087 is a deficient number, since it is larger than the sum of its proper divisors (1078437929).

11862817087 is a wasteful number, since it uses less digits than its factorization.

11862817087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078437928.

The product of its (nonzero) digits is 301056, while the sum is 49.

The spelling of 11862817087 in words is "eleven billion, eight hundred sixty-two million, eight hundred seventeen thousand, eighty-seven".