28993630711 has 2 divisors, whose sum is σ = 28993630712. Its totient is φ = 28993630710.

The previous prime is 28993630691. The next prime is 28993630733. The reversal of 28993630711 is 11703639982.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28993630711 - 2¹¹ = 28993628663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28993639711) 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, 14496815355 + 14496815356.

It is an arithmetic number, because the mean of its divisors is an integer number (14496815356).

Almost surely, 2^28993630711 is an apocalyptic number.

28993630711 is a deficient number, since it is larger than the sum of its proper divisors (1).

28993630711 is an equidigital number, since it uses as much as digits as its factorization.

28993630711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 49.

The spelling of 28993630711 in words is "twenty-eight billion, nine hundred ninety-three million, six hundred thirty thousand, seven hundred eleven".