869131245132 has 120 divisors (see below), whose sum is σ = 2348854458720. Its totient is φ = 280050773760.

The previous prime is 869131245109. The next prime is 869131245163. The reversal of 869131245132 is 231542131968.

869131245132 is a `hidden beast` number, since 8 + 6 + 9 + 1 + 3 + 124 + 513 + 2 = 666.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 1147833 + ... + 1748079.

It is an arithmetic number, because the mean of its divisors is an integer number (19573787156).

Almost surely, 2^869131245132 is an apocalyptic number.

869131245132 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 869131245132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1174427229360).

869131245132 is an abundant number, since it is smaller than the sum of its proper divisors (1479723213588).

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

869131245132 is a wasteful number, since it uses less digits than its factorization.

869131245132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600413 (or 600402 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The spelling of 869131245132 in words is "eight hundred sixty-nine billion, one hundred thirty-one million, two hundred forty-five thousand, one hundred thirty-two".