28000005032 has 16 divisors (see below), whose sum is σ = 53780498100. Its totient is φ = 13658538880.

The previous prime is 28000004969. The next prime is 28000005157. The reversal of 28000005032 is 23050000082.

It can be written as a sum of positive squares in 2 ways, for example, as 25944833476 + 2055171556 = 161074^2 + 45334^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28000004995 and 28000005013.

It is an unprimeable number.

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, 42682607 + ... + 42683262.

Almost surely, 2^28000005032 is an apocalyptic number.

It is an amenable number.

28000005032 is a deficient number, since it is larger than the sum of its proper divisors (25780493068).

28000005032 is a wasteful number, since it uses less digits than its factorization.

28000005032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85365916 (or 85365912 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

It can be divided in two parts, 280000050 and 32, that added together give a palindrome (280000082).

The spelling of 28000005032 in words is "twenty-eight billion, five thousand, thirty-two".