785859459871 has 2 divisors, whose sum is σ = 785859459872. Its totient is φ = 785859459870.

The previous prime is 785859459811. The next prime is 785859459883. The reversal of 785859459871 is 178954958587.

It is a strong prime.

It is an emirp because it is prime and its reverse (178954958587) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 785859459871 - 2²⁹ = 785322588959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (785859459811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 392929729935 + 392929729936.

It is an arithmetic number, because the mean of its divisors is an integer number (392929729936).

Almost surely, 2^785859459871 is an apocalyptic number.

785859459871 is a deficient number, since it is larger than the sum of its proper divisors (1).

785859459871 is an equidigital number, since it uses as much as digits as its factorization.

785859459871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064000, while the sum is 76.

The spelling of 785859459871 in words is "seven hundred eighty-five billion, eight hundred fifty-nine million, four hundred fifty-nine thousand, eight hundred seventy-one".