28605835605 has 32 divisors (see below), whose sum is σ = 48316464000. Its totient is φ = 14412010752.

The previous prime is 28605835571. The next prime is 28605835627. The reversal of 28605835605 is 50653850682.

It is not a de Polignac number, because 28605835605 - 2²¹ = 28603738453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44334 + ... + 243263.

It is an arithmetic number, because the mean of its divisors is an integer number (1509889500).

Almost surely, 2^28605835605 is an apocalyptic number.

It is an amenable number.

28605835605 is a deficient number, since it is larger than the sum of its proper divisors (19710628395).

28605835605 is a wasteful number, since it uses less digits than its factorization.

28605835605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287973.

The product of its (nonzero) digits is 1728000, while the sum is 48.

The spelling of 28605835605 in words is "twenty-eight billion, six hundred five million, eight hundred thirty-five thousand, six hundred five".