28213063687 has 2 divisors, whose sum is σ = 28213063688. Its totient is φ = 28213063686.

The previous prime is 28213063657. The next prime is 28213063741. The reversal of 28213063687 is 78636031282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28213063687 - 2⁷ = 28213063559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28213063657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14106531843 + 14106531844.

It is an arithmetic number, because the mean of its divisors is an integer number (14106531844).

Almost surely, 2^28213063687 is an apocalyptic number.

28213063687 is a deficient number, since it is larger than the sum of its proper divisors (1).

28213063687 is an equidigital number, since it uses as much as digits as its factorization.

28213063687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 28213063687 in words is "twenty-eight billion, two hundred thirteen million, sixty-three thousand, six hundred eighty-seven".