28536550915 has 16 divisors (see below), whose sum is σ = 35738998848. Its totient is φ = 21832830976.

The previous prime is 28536550901. The next prime is 28536550943. The reversal of 28536550915 is 51905563582.

It is a cyclic number.

It is not a de Polignac number, because 28536550915 - 2⁷ = 28536550787 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 756339 + ... + 793171.

It is an arithmetic number, because the mean of its divisors is an integer number (2233687428).

Almost surely, 2^28536550915 is an apocalyptic number.

28536550915 is a deficient number, since it is larger than the sum of its proper divisors (7202447933).

28536550915 is a wasteful number, since it uses less digits than its factorization.

28536550915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43598.

The product of its (nonzero) digits is 1620000, while the sum is 49.

The spelling of 28536550915 in words is "twenty-eight billion, five hundred thirty-six million, five hundred fifty thousand, nine hundred fifteen".