828194907969 has 48 divisors (see below), whose sum is σ = 1406567897280. Its totient is φ = 462947944320.

The previous prime is 828194907937. The next prime is 828194907973. The reversal of 828194907969 is 969709491828.

828194907969 is a `hidden beast` number, since 8 + 2 + 8 + 1 + 9 + 490 + 79 + 69 = 666.

It is not a de Polignac number, because 828194907969 - 2⁵ = 828194907937 is a prime.

It is a super-2 number, since 2×828194907969² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 828194907897 and 828194907906.

It is not an unprimeable number, because it can be changed into a prime (828194907269) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1319922 + ... + 1843524.

It is an arithmetic number, because the mean of its divisors is an integer number (29303497860).

Almost surely, 2^828194907969 is an apocalyptic number.

It is an amenable number.

828194907969 is a deficient number, since it is larger than the sum of its proper divisors (578372989311).

828194907969 is a wasteful number, since it uses less digits than its factorization.

828194907969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524862 (or 524859 counting only the distinct ones).

The product of its (nonzero) digits is 141087744, while the sum is 72.

The spelling of 828194907969 in words is "eight hundred twenty-eight billion, one hundred ninety-four million, nine hundred seven thousand, nine hundred sixty-nine".