828423949719 has 16 divisors (see below), whose sum is σ = 1117742269280. Its totient is φ = 545733002880.

The previous prime is 828423949711. The next prime is 828423949751. The reversal of 828423949719 is 917949324828.

828423949719 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 828423949719 - 2³ = 828423949711 is a prime.

It is a super-2 number, since 2×828423949719² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 828423949719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828423949711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4773484 + ... + 4943985.

It is an arithmetic number, because the mean of its divisors is an integer number (69858891830).

Almost surely, 2^828423949719 is an apocalyptic number.

828423949719 is a deficient number, since it is larger than the sum of its proper divisors (289318319561).

828423949719 is a wasteful number, since it uses less digits than its factorization.

828423949719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9717810.

The product of its digits is 62705664, while the sum is 66.

The spelling of 828423949719 in words is "eight hundred twenty-eight billion, four hundred twenty-three million, nine hundred forty-nine thousand, seven hundred nineteen".