849465905863 has 4 divisors (see below), whose sum is σ = 849836368648. Its totient is φ = 849095443080.

The previous prime is 849465905839. The next prime is 849465905903. The reversal of 849465905863 is 368509564948.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 849465905863 - 2⁵ = 849465905831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849465905263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185227953 + ... + 185232538.

It is an arithmetic number, because the mean of its divisors is an integer number (212459092162).

Almost surely, 2^849465905863 is an apocalyptic number.

849465905863 is a deficient number, since it is larger than the sum of its proper divisors (370462785).

849465905863 is a wasteful number, since it uses less digits than its factorization.

849465905863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370462784.

The product of its (nonzero) digits is 223948800, while the sum is 67.

The spelling of 849465905863 in words is "eight hundred forty-nine billion, four hundred sixty-five million, nine hundred five thousand, eight hundred sixty-three".