886340780861 has 2 divisors, whose sum is σ = 886340780862. Its totient is φ = 886340780860.

The previous prime is 886340780849. The next prime is 886340780867. The reversal of 886340780861 is 168087043688.

886340780861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 700411652836 + 185929128025 = 836906^2 + 431195^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-886340780861 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 886340780861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (886340780867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 443170390430 + 443170390431.

It is an arithmetic number, because the mean of its divisors is an integer number (443170390431).

Almost surely, 2^886340780861 is an apocalyptic number.

It is an amenable number.

886340780861 is a deficient number, since it is larger than the sum of its proper divisors (1).

886340780861 is an equidigital number, since it uses as much as digits as its factorization.

886340780861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12386304, while the sum is 59.

The spelling of 886340780861 in words is "eight hundred eighty-six billion, three hundred forty million, seven hundred eighty thousand, eight hundred sixty-one".