199506071828 has 72 divisors (see below), whose sum is σ = 441651494592. Its totient is φ = 76974112512.

The previous prime is 199506071767. The next prime is 199506071893. The reversal of 199506071828 is 828170605991.

199506071828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144350 + ... + 647957.

It is an arithmetic number, because the mean of its divisors is an integer number (6134048536).

Almost surely, 2^199506071828 is an apocalyptic number.

It is an amenable number.

199506071828 is an abundant number, since it is smaller than the sum of its proper divisors (242145422764).

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

199506071828 is a wasteful number, since it uses less digits than its factorization.

199506071828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792381 (or 792356 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 56.

The spelling of 199506071828 in words is "one hundred ninety-nine billion, five hundred six million, seventy-one thousand, eight hundred twenty-eight".