28381930219411 has 2 divisors, whose sum is σ = 28381930219412. Its totient is φ = 28381930219410.

The previous prime is 28381930219397. The next prime is 28381930219421. The reversal of 28381930219411 is 11491203918382.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28381930219411 - 2⁷ = 28381930219283 is a prime.

It is not a weakly prime, because it can be changed into another prime (28381930219421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14190965109705 + 14190965109706.

It is an arithmetic number, because the mean of its divisors is an integer number (14190965109706).

Almost surely, 2^{28381930219411} is an apocalyptic number.

28381930219411 is a deficient number, since it is larger than the sum of its proper divisors (1).

28381930219411 is an equidigital number, since it uses as much as digits as its factorization.

28381930219411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 746496, while the sum is 52.

The spelling of 28381930219411 in words is "twenty-eight trillion, three hundred eighty-one billion, nine hundred thirty million, two hundred nineteen thousand, four hundred eleven".