28011681179 has 2 divisors, whose sum is σ = 28011681180. Its totient is φ = 28011681178.

The previous prime is 28011681169. The next prime is 28011681223. The reversal of 28011681179 is 97118611082.

It is a happy number.

It is an a-pointer prime, because the next prime (28011681223) can be obtained adding 28011681179 to its sum of digits (44).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28011681179 - 2⁸ = 28011680923 is a prime.

It is not a weakly prime, because it can be changed into another prime (28011681119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14005840589 + 14005840590.

It is an arithmetic number, because the mean of its divisors is an integer number (14005840590).

Almost surely, 2^28011681179 is an apocalyptic number.

28011681179 is a deficient number, since it is larger than the sum of its proper divisors (1).

28011681179 is an equidigital number, since it uses as much as digits as its factorization.

28011681179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 44.

The spelling of 28011681179 in words is "twenty-eight billion, eleven million, six hundred eighty-one thousand, one hundred seventy-nine".