849845990887 has 8 divisors (see below), whose sum is σ = 853704553856. Its totient is φ = 845987853312.

The previous prime is 849845990867. The next prime is 849845990911. The reversal of 849845990887 is 788099548948.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 849845990887 - 2¹⁹ = 849845466599 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 (849845990827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4313923 + ... + 4506619.

It is an arithmetic number, because the mean of its divisors is an integer number (106713069232).

Almost surely, 2^849845990887 is an apocalyptic number.

849845990887 is a deficient number, since it is larger than the sum of its proper divisors (3858562969).

849845990887 is a wasteful number, since it uses less digits than its factorization.

849845990887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212697.

The product of its (nonzero) digits is 1672151040, while the sum is 79.

The spelling of 849845990887 in words is "eight hundred forty-nine billion, eight hundred forty-five million, nine hundred ninety thousand, eight hundred eighty-seven".