869490796176 has 120 divisors (see below), whose sum is σ = 2508031299384. Its totient is φ = 280992983040.

The previous prime is 869490796171. The next prime is 869490796189. The reversal of 869490796176 is 671697094968.

869490796176 is a `hidden beast` number, since 8 + 6 + 9 + 490 + 7 + 9 + 61 + 76 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 303023826576 + 566466969600 = 550476^2 + 752640^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (869490796171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1206790 + ... + 1787546.

Almost surely, 2^869490796176 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 869490796176, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1254015649692).

869490796176 is an abundant number, since it is smaller than the sum of its proper divisors (1638540503208).

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

869490796176 is a wasteful number, since it uses less digits than its factorization.

869490796176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581089 (or 581080 counting only the distinct ones).

The product of its (nonzero) digits is 246903552, while the sum is 72.

The spelling of 869490796176 in words is "eight hundred sixty-nine billion, four hundred ninety million, seven hundred ninety-six thousand, one hundred seventy-six".