870647783911 has 2 divisors, whose sum is σ = 870647783912. Its totient is φ = 870647783910.

The previous prime is 870647783909. The next prime is 870647783917. The reversal of 870647783911 is 119387746078.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 870647783911 - 2¹ = 870647783909 is a prime.

Together with 870647783909, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 870647783911.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (870647783917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435323891955 + 435323891956.

It is an arithmetic number, because the mean of its divisors is an integer number (435323891956).

Almost surely, 2^870647783911 is an apocalyptic number.

870647783911 is a deficient number, since it is larger than the sum of its proper divisors (1).

870647783911 is an equidigital number, since it uses as much as digits as its factorization.

870647783911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14224896, while the sum is 61.

The spelling of 870647783911 in words is "eight hundred seventy billion, six hundred forty-seven million, seven hundred eighty-three thousand, nine hundred eleven".