28350019193 has 8 divisors (see below), whose sum is σ = 28821849480. Its totient is φ = 27878417280.

The previous prime is 28350019189. The next prime is 28350019231. The reversal of 28350019193 is 39191005382.

It can be written as a sum of positive squares in 4 ways, for example, as 2529385849 + 25820633344 = 50293^2 + 160688^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28350019193 - 2² = 28350019189 is a prime.

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 28350019193.

It is not an unprimeable number, because it can be changed into a prime (28350019393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203021 + ... + 312917.

It is an arithmetic number, because the mean of its divisors is an integer number (3602731185).

Almost surely, 2^28350019193 is an apocalyptic number.

It is an amenable number.

28350019193 is a deficient number, since it is larger than the sum of its proper divisors (471830287).

28350019193 is a wasteful number, since it uses less digits than its factorization.

28350019193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114187.

The product of its (nonzero) digits is 58320, while the sum is 41.

The spelling of 28350019193 in words is "twenty-eight billion, three hundred fifty million, nineteen thousand, one hundred ninety-three".