28320610406 has 16 divisors (see below), whose sum is σ = 46377999360. Its totient is φ = 12863231880.

The previous prime is 28320610343. The next prime is 28320610429. The reversal of 28320610406 is 60401602382.

It is a congruent number.

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, 458966 + ... + 517001.

It is an arithmetic number, because the mean of its divisors is an integer number (2898624960).

Almost surely, 2^28320610406 is an apocalyptic number.

28320610406 is a deficient number, since it is larger than the sum of its proper divisors (18057388954).

28320610406 is a wasteful number, since it uses less digits than its factorization.

28320610406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977299.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 28320610406 in words is "twenty-eight billion, three hundred twenty million, six hundred ten thousand, four hundred six".