885130729792 has 56 divisors (see below), whose sum is σ = 1777923908712. Its totient is φ = 437170176000.

The previous prime is 885130729783. The next prime is 885130729831. The reversal of 885130729792 is 297927031588.

It can be written as a sum of positive squares in 4 ways, for example, as 113234942016 + 771895787776 = 336504^2 + 878576^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 885130729792.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2640792 + ... + 2957032.

It is an arithmetic number, because the mean of its divisors is an integer number (31748641227).

Almost surely, 2^885130729792 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 885130729792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (888961954356).

885130729792 is an abundant number, since it is smaller than the sum of its proper divisors (892793178920).

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

885130729792 is a wasteful number, since it uses less digits than its factorization.

885130729792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316787 (or 316777 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 61.

The spelling of 885130729792 in words is "eight hundred eighty-five billion, one hundred thirty million, seven hundred twenty-nine thousand, seven hundred ninety-two".