869050512 has 160 divisors (see below), whose sum is σ = 2737920000. Its totient is φ = 261740160.

The previous prime is 869050477. The next prime is 869050517. The reversal of 869050512 is 215050968.

It is a happy number.

869050512 is a `hidden beast` number, since 8 + 6 + 90 + 50 + 512 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (869050517) 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 31 ways as a sum of consecutive naturals, for example, 945189 + ... + 946107.

It is an arithmetic number, because the mean of its divisors is an integer number (17112000).

Almost surely, 2^869050512 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 869050512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1368960000).

869050512 is an abundant number, since it is smaller than the sum of its proper divisors (1868869488).

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

869050512 is a wasteful number, since it uses less digits than its factorization.

869050512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146 (or 1134 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 869050512 is about 29479.6626846374. The cubic root of 869050512 is about 954.2928573626.

The spelling of 869050512 in words is "eight hundred sixty-nine million, fifty thousand, five hundred twelve".