28193830101 has 6 divisors (see below), whose sum is σ = 40724421270. Its totient is φ = 18795886728.

The previous prime is 28193830079. The next prime is 28193830103. The reversal of 28193830101 is 10103839182.

It can be written as a sum of positive squares in only one way, i.e., 28193768100 + 62001 = 167910^2 + 249^2 .

It is not a de Polignac number, because 28193830101 - 2¹⁰ = 28193829077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28193830103) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1566323886 + ... + 1566323903.

It is an arithmetic number, because the mean of its divisors is an integer number (6787403545).

Almost surely, 2^28193830101 is an apocalyptic number.

It is an amenable number.

28193830101 is a deficient number, since it is larger than the sum of its proper divisors (12530591169).

28193830101 is a wasteful number, since it uses less digits than its factorization.

28193830101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3132647795 (or 3132647792 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The spelling of 28193830101 in words is "twenty-eight billion, one hundred ninety-three million, eight hundred thirty thousand, one hundred one".