28287178411 has 2 divisors, whose sum is σ = 28287178412. Its totient is φ = 28287178410.

The previous prime is 28287178349. The next prime is 28287178489. The reversal of 28287178411 is 11487178282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28287178411 - 2⁹ = 28287177899 is a prime.

It is not a weakly prime, because it can be changed into another prime (28287178111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14143589205 + 14143589206.

It is an arithmetic number, because the mean of its divisors is an integer number (14143589206).

Almost surely, 2^28287178411 is an apocalyptic number.

28287178411 is a deficient number, since it is larger than the sum of its proper divisors (1).

28287178411 is an equidigital number, since it uses as much as digits as its factorization.

28287178411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 401408, while the sum is 49.

The spelling of 28287178411 in words is "twenty-eight billion, two hundred eighty-seven million, one hundred seventy-eight thousand, four hundred eleven".