825065730688 has 16 divisors (see below), whose sum is σ = 1643685635610. Its totient is φ = 412532865280.

The previous prime is 825065730677. The next prime is 825065730703. The reversal of 825065730688 is 886037560528.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 779067491904 + 45998238784 = 882648^2 + 214472^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3222912883 + ... + 3222913138.

Almost surely, 2^825065730688 is an apocalyptic number.

It is an amenable number.

825065730688 is a deficient number, since it is larger than the sum of its proper divisors (818619904922).

825065730688 is an equidigital number, since it uses as much as digits as its factorization.

825065730688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6445826035 (or 6445826023 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 58.

The spelling of 825065730688 in words is "eight hundred twenty-five billion, sixty-five million, seven hundred thirty thousand, six hundred eighty-eight".