869020266312 has 144 divisors (see below), whose sum is σ = 2625624958320. Its totient is φ = 259408860480.

The previous prime is 869020266259. The next prime is 869020266319. The reversal of 869020266312 is 213662020968.

869020266312 is a `hidden beast` number, since 8 + 6 + 9 + 0 + 2 + 0 + 2 + 6 + 631 + 2 = 666.

869020266312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (869020266319) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 160698 + ... + 1328105.

It is an arithmetic number, because the mean of its divisors is an integer number (18233506655).

Almost surely, 2^869020266312 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 869020266312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1312812479160).

869020266312 is an abundant number, since it is smaller than the sum of its proper divisors (1756604692008).

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

869020266312 is a wasteful number, since it uses less digits than its factorization.

869020266312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488904 (or 1488886 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 869020266312 in words is "eight hundred sixty-nine billion, twenty million, two hundred sixty-six thousand, three hundred twelve".