28613860838 has 16 divisors (see below), whose sum is σ = 44790507360. Its totient is φ = 13683791616.

The previous prime is 28613860837. The next prime is 28613860841. The reversal of 28613860838 is 83806831682.

It is a self number, because there is not a number n which added to its sum of digits gives 28613860838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28613860831) by changing a digit.

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, 1086806 + ... + 1112822.

It is an arithmetic number, because the mean of its divisors is an integer number (2799406710).

Almost surely, 2^28613860838 is an apocalyptic number.

28613860838 is a deficient number, since it is larger than the sum of its proper divisors (16176646522).

28613860838 is a wasteful number, since it uses less digits than its factorization.

28613860838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49951.

The product of its (nonzero) digits is 2654208, while the sum is 53.

The spelling of 28613860838 in words is "twenty-eight billion, six hundred thirteen million, eight hundred sixty thousand, eight hundred thirty-eight".