28736203536 has 30 divisors (see below), whose sum is σ = 80421458910. Its totient is φ = 9578734464.

The previous prime is 28736203493. The next prime is 28736203547. The reversal of 28736203536 is 63530263782.

28736203536 is a `hidden beast` number, since 2 + 87 + 36 + 2 + 0 + 3 + 536 = 666.

It can be written as a sum of positive squares in only one way, i.e., 24474725136 + 4261478400 = 156444^2 + 65280^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28736203491 and 28736203500.

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 5 ways as a sum of consecutive naturals, for example, 99778341 + ... + 99778628.

It is an arithmetic number, because the mean of its divisors is an integer number (2680715297).

Almost surely, 2^28736203536 is an apocalyptic number.

It is an amenable number.

28736203536 is an abundant number, since it is smaller than the sum of its proper divisors (51685255374).

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

28736203536 is a wasteful number, since it uses less digits than its factorization.

28736203536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199556983 (or 199556974 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 45.

The spelling of 28736203536 in words is "twenty-eight billion, seven hundred thirty-six million, two hundred three thousand, five hundred thirty-six".