28316477528 has 8 divisors (see below), whose sum is σ = 53093395380. Its totient is φ = 14158238760.

The previous prime is 28316477509. The next prime is 28316477551. The reversal of 28316477528 is 82577461382.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 28316477528.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 1769779838 + ... + 1769779853.

Almost surely, 2^28316477528 is an apocalyptic number.

It is an amenable number.

28316477528 is a deficient number, since it is larger than the sum of its proper divisors (24776917852).

28316477528 is a wasteful number, since it uses less digits than its factorization.

28316477528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3539559697 (or 3539559693 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 53.

The spelling of 28316477528 in words is "twenty-eight billion, three hundred sixteen million, four hundred seventy-seven thousand, five hundred twenty-eight".