870458317913 has 2 divisors, whose sum is σ = 870458317914. Its totient is φ = 870458317912.

The previous prime is 870458317907. The next prime is 870458317957. The reversal of 870458317913 is 319713854078.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 587565174784 + 282893143129 = 766528^2 + 531877^2 .

It is a cyclic number.

It is not a de Polignac number, because 870458317913 - 2²⁴ = 870441540697 is a prime.

It is not a weakly prime, because it can be changed into another prime (870458317903) 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, 435229158956 + 435229158957.

It is an arithmetic number, because the mean of its divisors is an integer number (435229158957).

Almost surely, 2^870458317913 is an apocalyptic number.

It is an amenable number.

870458317913 is a deficient number, since it is larger than the sum of its proper divisors (1).

870458317913 is an equidigital number, since it uses as much as digits as its factorization.

870458317913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5080320, while the sum is 56.

The spelling of 870458317913 in words is "eight hundred seventy billion, four hundred fifty-eight million, three hundred seventeen thousand, nine hundred thirteen".