28800805331 has 2 divisors, whose sum is σ = 28800805332. Its totient is φ = 28800805330.

The previous prime is 28800805259. The next prime is 28800805349. The reversal of 28800805331 is 13350800882.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28800805331 is a prime.

It is a super-2 number, since 2×28800805331² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28800805381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14400402665 + 14400402666.

It is an arithmetic number, because the mean of its divisors is an integer number (14400402666).

Almost surely, 2^28800805331 is an apocalyptic number.

28800805331 is a deficient number, since it is larger than the sum of its proper divisors (1).

28800805331 is an equidigital number, since it uses as much as digits as its factorization.

28800805331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46080, while the sum is 38.

The spelling of 28800805331 in words is "twenty-eight billion, eight hundred million, eight hundred five thousand, three hundred thirty-one".