869404028360 has 128 divisors (see below), whose sum is σ = 2283415142400. Its totient is φ = 291767857920.

The previous prime is 869404028359. The next prime is 869404028407. The reversal of 869404028360 is 63820404968.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 869404028299 and 869404028308.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2606009 + ... + 2920631.

It is an arithmetic number, because the mean of its divisors is an integer number (17839180800).

Almost surely, 2^869404028360 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 869404028360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1141707571200).

869404028360 is an abundant number, since it is smaller than the sum of its proper divisors (1414011114040).

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

869404028360 is a wasteful number, since it uses less digits than its factorization.

869404028360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314851 (or 314847 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 50.

The spelling of 869404028360 in words is "eight hundred sixty-nine billion, four hundred four million, twenty-eight thousand, three hundred sixty".