849810078 has 72 divisors (see below), whose sum is σ = 2003384448. Its totient is φ = 260222976.

The previous prime is 849810053. The next prime is 849810079. The reversal of 849810078 is 870018948.

849810078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849810079) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 781251 + ... + 782337.

It is an arithmetic number, because the mean of its divisors is an integer number (27824784).

Almost surely, 2^849810078 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 849810078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1001692224).

849810078 is an abundant number, since it is smaller than the sum of its proper divisors (1153574370).

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

849810078 is a wasteful number, since it uses less digits than its factorization.

849810078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378 (or 1362 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 849810078 is about 29151.5021568358. The cubic root of 849810078 is about 947.1976801353.

The spelling of 849810078 in words is "eight hundred forty-nine million, eight hundred ten thousand, seventy-eight".