28532715839 has 2 divisors, whose sum is σ = 28532715840. Its totient is φ = 28532715838.

The previous prime is 28532715817. The next prime is 28532715847. The reversal of 28532715839 is 93851723582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28532715839 - 2¹² = 28532711743 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28532715139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14266357919 + 14266357920.

It is an arithmetic number, because the mean of its divisors is an integer number (14266357920).

Almost surely, 2^28532715839 is an apocalyptic number.

28532715839 is a deficient number, since it is larger than the sum of its proper divisors (1).

28532715839 is an equidigital number, since it uses as much as digits as its factorization.

28532715839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3628800, while the sum is 53.

The spelling of 28532715839 in words is "twenty-eight billion, five hundred thirty-two million, seven hundred fifteen thousand, eight hundred thirty-nine".