849133680 has 80 divisors (see below), whose sum is σ = 2787169824. Its totient is φ = 213114880.

The previous prime is 849133669. The next prime is 849133699. The reversal of 849133680 is 86331948.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99981 + ... + 108140.

Almost surely, 2^849133680 is an apocalyptic number.

849133680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

849133680 is an abundant number, since it is smaller than the sum of its proper divisors (1938036144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

849133680 is a wasteful number, since it uses less digits than its factorization.

849133680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208154 (or 208148 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 849133680 is about 29139.8984212368. The cubic root of 849133680 is about 946.9463091957.

The spelling of 849133680 in words is "eight hundred forty-nine million, one hundred thirty-three thousand, six hundred eighty".