28579474066668 has 24 divisors (see below), whose sum is σ = 76211930844672. Its totient is φ = 8165564019024.

The previous prime is 28579474066643. The next prime is 28579474066679. The reversal of 28579474066668 is 86666047497582.

It is a junction number, because it is equal to n+sod(n) for n = 28579474066593 and 28579474066602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170115916980 + ... + 170115917147.

It is an arithmetic number, because the mean of its divisors is an integer number (3175497118528).

Almost surely, 2^{28579474066668} is an apocalyptic number.

28579474066668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28579474066668 is an abundant number, since it is smaller than the sum of its proper divisors (47632456778004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28579474066668 is a wasteful number, since it uses less digits than its factorization.

28579474066668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340231834141 (or 340231834139 counting only the distinct ones).

The product of its (nonzero) digits is 5852528640, while the sum is 78.

The spelling of 28579474066668 in words is "twenty-eight trillion, five hundred seventy-nine billion, four hundred seventy-four million, sixty-six thousand, six hundred sixty-eight".