828745734875 has 64 divisors (see below), whose sum is σ = 1089469180800. Its totient is φ = 628604928000.

The previous prime is 828745734851. The next prime is 828745734877. The reversal of 828745734875 is 578437547828.

828745734875 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-828745734875 is a prime.

It is not an unprimeable number, because it can be changed into a prime (828745734877) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 89290235 + ... + 89299515.

It is an arithmetic number, because the mean of its divisors is an integer number (17022955950).

Almost surely, 2^828745734875 is an apocalyptic number.

828745734875 is a deficient number, since it is larger than the sum of its proper divisors (260723445925).

828745734875 is a wasteful number, since it uses less digits than its factorization.

828745734875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9825 (or 9815 counting only the distinct ones).

The product of its digits is 421478400, while the sum is 68.

The spelling of 828745734875 in words is "eight hundred twenty-eight billion, seven hundred forty-five million, seven hundred thirty-four thousand, eight hundred seventy-five".