870458317957 has 2 divisors, whose sum is σ = 870458317958. Its totient is φ = 870458317956.

The previous prime is 870458317913. The next prime is 870458317979. The reversal of 870458317957 is 759713854078.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 709560261316 + 160898056641 = 842354^2 + 401121^2 .

It is a cyclic number.

It is not a de Polignac number, because 870458317957 - 2¹⁵ = 870458285189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (870458317907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435229158978 + 435229158979.

It is an arithmetic number, because the mean of its divisors is an integer number (435229158979).

Almost surely, 2^870458317957 is an apocalyptic number.

It is an amenable number.

870458317957 is a deficient number, since it is larger than the sum of its proper divisors (1).

870458317957 is an equidigital number, since it uses as much as digits as its factorization.

870458317957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 59270400, while the sum is 64.

The spelling of 870458317957 in words is "eight hundred seventy billion, four hundred fifty-eight million, three hundred seventeen thousand, nine hundred fifty-seven".