28323163441 has 2 divisors, whose sum is σ = 28323163442. Its totient is φ = 28323163440.

The previous prime is 28323163397. The next prime is 28323163459. The reversal of 28323163441 is 14436132382.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24829880625 + 3493282816 = 157575^2 + 59104^2 .

It is a cyclic number.

It is not a de Polignac number, because 28323163441 - 2⁷ = 28323163313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28323163441.

It is not a weakly prime, because it can be changed into another prime (28323163481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14161581720 + 14161581721.

It is an arithmetic number, because the mean of its divisors is an integer number (14161581721).

Almost surely, 2^28323163441 is an apocalyptic number.

It is an amenable number.

28323163441 is a deficient number, since it is larger than the sum of its proper divisors (1).

28323163441 is an equidigital number, since it uses as much as digits as its factorization.

28323163441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 37.

The spelling of 28323163441 in words is "twenty-eight billion, three hundred twenty-three million, one hundred sixty-three thousand, four hundred forty-one".