28622887507 has 2 divisors, whose sum is σ = 28622887508. Its totient is φ = 28622887506.

The previous prime is 28622887463. The next prime is 28622887511. The reversal of 28622887507 is 70578822682.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28622887507 - 2³¹ = 26475403859 is a prime.

It is not a weakly prime, because it can be changed into another prime (28622887537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14311443753 + 14311443754.

It is an arithmetic number, because the mean of its divisors is an integer number (14311443754).

Almost surely, 2^28622887507 is an apocalyptic number.

28622887507 is a deficient number, since it is larger than the sum of its proper divisors (1).

28622887507 is an equidigital number, since it uses as much as digits as its factorization.

28622887507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6021120, while the sum is 55.

The spelling of 28622887507 in words is "twenty-eight billion, six hundred twenty-two million, eight hundred eighty-seven thousand, five hundred seven".