28606775928680 has 64 divisors (see below), whose sum is σ = 67899860582400. Its totient is φ = 10816947221760.

The previous prime is 28606775928667. The next prime is 28606775928691. The reversal of 28606775928680 is 8682957760682.

It is a junction number, because it is equal to n+sod(n) for n = 28606775928598 and 28606775928607.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40474472 + ... + 41175191.

It is an arithmetic number, because the mean of its divisors is an integer number (1060935321600).

Almost surely, 2^{28606775928680} is an apocalyptic number.

28606775928680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28606775928680 is an abundant number, since it is smaller than the sum of its proper divisors (39293084653720).

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

28606775928680 is a wasteful number, since it uses less digits than its factorization.

28606775928680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81650154 (or 81650150 counting only the distinct ones).

The product of its (nonzero) digits is 975421440, while the sum is 74.

The spelling of 28606775928680 in words is "twenty-eight trillion, six hundred six billion, seven hundred seventy-five million, nine hundred twenty-eight thousand, six hundred eighty".