308873795728 has 20 divisors (see below), whose sum is σ = 608253521788. Its totient is φ = 151905144960.

The previous prime is 308873795723. The next prime is 308873795731. The reversal of 308873795728 is 827597378803.

It can be written as a sum of positive squares in 2 ways, for example, as 82937088144 + 225936707584 = 287988^2 + 475328^2 .

It is not an unprimeable number, because it can be changed into a prime (308873795723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158233551 + ... + 158235502.

Almost surely, 2^308873795728 is an apocalyptic number.

It is an amenable number.

308873795728 is a deficient number, since it is larger than the sum of its proper divisors (299379726060).

308873795728 is a wasteful number, since it uses less digits than its factorization.

308873795728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316469122 (or 316469116 counting only the distinct ones).

The product of its (nonzero) digits is 142248960, while the sum is 67.

It can be divided in two parts, 308873 and 795728, that added together give a square (1104601 = 1051²).

The spelling of 308873795728 in words is "three hundred eight billion, eight hundred seventy-three million, seven hundred ninety-five thousand, seven hundred twenty-eight".