28501322692 has 24 divisors (see below), whose sum is σ = 51856449120. Its totient is φ = 13695570240.

The previous prime is 28501322653. The next prime is 28501322711. The reversal of 28501322692 is 29622310582.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1285942 + ... + 1307917.

It is an arithmetic number, because the mean of its divisors is an integer number (2160685380).

Almost surely, 2^28501322692 is an apocalyptic number.

It is an amenable number.

28501322692 is a deficient number, since it is larger than the sum of its proper divisors (23355126428).

28501322692 is a wasteful number, since it uses less digits than its factorization.

28501322692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2593971 (or 2593969 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 28501322692 in words is "twenty-eight billion, five hundred one million, three hundred twenty-two thousand, six hundred ninety-two".