28041880819 has 2 divisors, whose sum is σ = 28041880820. Its totient is φ = 28041880818.

The previous prime is 28041880787. The next prime is 28041880859. The reversal of 28041880819 is 91808814082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28041880819 - 2⁵ = 28041880787 is a prime.

It is a super-2 number, since 2×28041880819² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28041880859) 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, 14020940409 + 14020940410.

It is an arithmetic number, because the mean of its divisors is an integer number (14020940410).

Almost surely, 2^28041880819 is an apocalyptic number.

28041880819 is a deficient number, since it is larger than the sum of its proper divisors (1).

28041880819 is an equidigital number, since it uses as much as digits as its factorization.

28041880819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 294912, while the sum is 49.

The spelling of 28041880819 in words is "twenty-eight billion, forty-one million, eight hundred eighty thousand, eight hundred nineteen".