308845805028 has 12 divisors (see below), whose sum is σ = 720640211760. Its totient is φ = 102948601672.

The previous prime is 308845804979. The next prime is 308845805111. The reversal of 308845805028 is 820508548803.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12868575198 + ... + 12868575221.

It is an arithmetic number, because the mean of its divisors is an integer number (60053350980).

Almost surely, 2^308845805028 is an apocalyptic number.

It is an amenable number.

308845805028 is an abundant number, since it is smaller than the sum of its proper divisors (411794406732).

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

308845805028 is a wasteful number, since it uses less digits than its factorization.

308845805028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25737150426 (or 25737150424 counting only the distinct ones).

The product of its (nonzero) digits is 2457600, while the sum is 51.

The spelling of 308845805028 in words is "three hundred eight billion, eight hundred forty-five million, eight hundred five thousand, twenty-eight".