870678263327813 has 2 divisors, whose sum is σ = 870678263327814. Its totient is φ = 870678263327812.

The previous prime is 870678263327809. The next prime is 870678263327921. The reversal of 870678263327813 is 318723362876078.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 528426857326369 + 342251406001444 = 22987537^2 + 18500038^2 .

It is a cyclic number.

It is not a de Polignac number, because 870678263327813 - 2² = 870678263327809 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (870678263347813) 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, 435339131663906 + 435339131663907.

It is an arithmetic number, because the mean of its divisors is an integer number (435339131663907).

Almost surely, 2^{870678263327813} is an apocalyptic number.

It is an amenable number.

870678263327813 is a deficient number, since it is larger than the sum of its proper divisors (1).

870678263327813 is an equidigital number, since it uses as much as digits as its factorization.

870678263327813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 682795008, while the sum is 71.

The spelling of 870678263327813 in words is "eight hundred seventy trillion, six hundred seventy-eight billion, two hundred sixty-three million, three hundred twenty-seven thousand, eight hundred thirteen".