869161752 has 80 divisors (see below), whose sum is σ = 2491152840. Its totient is φ = 282973824.

The previous prime is 869161751. The next prime is 869161757. The reversal of 869161752 is 257161968.

It is a super-2 number, since 2×869161752² = 1510884302279419008, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 869161698 and 869161707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869161751) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12268 + ... + 43460.

Almost surely, 2^869161752 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 869161752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1245576420).

869161752 is an abundant number, since it is smaller than the sum of its proper divisors (1621991088).

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

869161752 is a wasteful number, since it uses less digits than its factorization.

869161752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31254 (or 31241 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 869161752 is about 29481.5493487028. The cubic root of 869161752 is about 954.3335726823. Note that the first 3 decimals are identical.

The spelling of 869161752 in words is "eight hundred sixty-nine million, one hundred sixty-one thousand, seven hundred fifty-two".