858885283493 has 2 divisors, whose sum is σ = 858885283494. Its totient is φ = 858885283492.

The previous prime is 858885283441. The next prime is 858885283513. The reversal of 858885283493 is 394382588858.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 673346612929 + 185538670564 = 820577^2 + 430742^2 .

It is a cyclic number.

It is not a de Polignac number, because 858885283493 - 2⁸ = 858885283237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (858885283423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429442641746 + 429442641747.

It is an arithmetic number, because the mean of its divisors is an integer number (429442641747).

Almost surely, 2^858885283493 is an apocalyptic number.

It is an amenable number.

858885283493 is a deficient number, since it is larger than the sum of its proper divisors (1).

858885283493 is an equidigital number, since it uses as much as digits as its factorization.

858885283493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 530841600, while the sum is 71.

The spelling of 858885283493 in words is "eight hundred fifty-eight billion, eight hundred eighty-five million, two hundred eighty-three thousand, four hundred ninety-three".