11687042863 has 2 divisors, whose sum is σ = 11687042864. Its totient is φ = 11687042862.

The previous prime is 11687042849. The next prime is 11687042881. The reversal of 11687042863 is 36824078611.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (36824078611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11687042863 - 2²¹ = 11684945711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11687042363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5843521431 + 5843521432.

It is an arithmetic number, because the mean of its divisors is an integer number (5843521432).

Almost surely, 2^11687042863 is an apocalyptic number.

11687042863 is a deficient number, since it is larger than the sum of its proper divisors (1).

11687042863 is an equidigital number, since it uses as much as digits as its factorization.

11687042863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 11687042863 in words is "eleven billion, six hundred eighty-seven million, forty-two thousand, eight hundred sixty-three".