28547307844 has 36 divisors (see below), whose sum is σ = 55573952112. Its totient is φ = 12819693040.

The previous prime is 28547307839. The next prime is 28547307947. The reversal of 28547307844 is 44870374582.

It is a junction number, because it is equal to n+sod(n) for n = 28547307791 and 28547307800.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 315142 + ... + 395485.

It is an arithmetic number, because the mean of its divisors is an integer number (1543720892).

Almost surely, 2^28547307844 is an apocalyptic number.

It is an amenable number.

28547307844 is a deficient number, since it is larger than the sum of its proper divisors (27026644268).

28547307844 is a wasteful number, since it uses less digits than its factorization.

28547307844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710736 (or 710723 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 52.

The spelling of 28547307844 in words is "twenty-eight billion, five hundred forty-seven million, three hundred seven thousand, eight hundred forty-four".