849551136 has 48 divisors (see below), whose sum is σ = 2548655424. Its totient is φ = 242728704.

The previous prime is 849551071. The next prime is 849551137. The reversal of 849551136 is 631155948.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (849551137) 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 7 ways as a sum of consecutive naturals, for example, 631435 + ... + 632778.

It is an arithmetic number, because the mean of its divisors is an integer number (53096988).

Almost surely, 2^849551136 is an apocalyptic number.

It is an amenable number.

849551136 is an abundant number, since it is smaller than the sum of its proper divisors (1699104288).

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

849551136 is a wasteful number, since it uses less digits than its factorization.

849551136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264233 (or 1264225 counting only the distinct ones).

The product of its digits is 129600, while the sum is 42.

The square root of 849551136 is about 29147.0605035911. The cubic root of 849551136 is about 947.1014648420.

The spelling of 849551136 in words is "eight hundred forty-nine million, five hundred fifty-one thousand, one hundred thirty-six".