849945177 has 16 divisors (see below), whose sum is σ = 1262800000. Its totient is φ = 565000272.

The previous prime is 849945127. The next prime is 849945223. The reversal of 849945177 is 771549948.

It is not a de Polignac number, because 849945177 - 2¹⁸ = 849683033 is a prime.

It is a super-2 number, since 2×849945177² = 1444813607811122658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (849945127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35677 + ... + 54522.

It is an arithmetic number, because the mean of its divisors is an integer number (78925000).

Almost surely, 2^849945177 is an apocalyptic number.

It is an amenable number.

849945177 is a deficient number, since it is larger than the sum of its proper divisors (412854823).

849945177 is a wasteful number, since it uses less digits than its factorization.

849945177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90557 (or 90551 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 54.

The square root of 849945177 is about 29153.8192523724. The cubic root of 849945177 is about 947.2478712239.

The spelling of 849945177 in words is "eight hundred forty-nine million, nine hundred forty-five thousand, one hundred seventy-seven".