853122816 has 324 divisors, whose sum is σ = 3053760528. Its totient is φ = 224280576.

The previous prime is 853122799. The next prime is 853122827. The reversal of 853122816 is 618221358.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2725476 + ... + 2725788.

Almost surely, 2^853122816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 853122816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1526880264).

853122816 is an abundant number, since it is smaller than the sum of its proper divisors (2200637712).

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

853122816 is a wasteful number, since it uses less digits than its factorization.

853122816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368 (or 338 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 853122816 is about 29208.2662272173. The cubic root of 853122816 is about 948.4268760643.

The spelling of 853122816 in words is "eight hundred fifty-three million, one hundred twenty-two thousand, eight hundred sixteen".