28152804202 has 8 divisors (see below), whose sum is σ = 44713277316. Its totient is φ = 13248378432.

The previous prime is 28152804193. The next prime is 28152804209. The reversal of 28152804202 is 20240825182.

28152804202 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 27855276201 + 297528001 = 166899^2 + 17249^2 .

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

It is a super-2 number, since 2×28152804202² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 828023653 = 28152804202 / (2 + 8 + 1 + 5 + 2 + 8 + 0 + 4 + 2 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (28152804209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 414011793 + ... + 414011860.

Almost surely, 2^28152804202 is an apocalyptic number.

28152804202 is a deficient number, since it is larger than the sum of its proper divisors (16560473114).

28152804202 is a wasteful number, since it uses less digits than its factorization.

28152804202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828023672.

The product of its (nonzero) digits is 20480, while the sum is 34.

The spelling of 28152804202 in words is "twenty-eight billion, one hundred fifty-two million, eight hundred four thousand, two hundred two".