28715253733 has 2 divisors, whose sum is σ = 28715253734. Its totient is φ = 28715253732.

The previous prime is 28715253719. The next prime is 28715253761. The reversal of 28715253733 is 33735251782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16583773284 + 12131480449 = 128778^2 + 110143^2 .

It is a cyclic number.

It is not a de Polignac number, because 28715253733 - 2¹⁷ = 28715122661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28715053733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14357626866 + 14357626867.

It is an arithmetic number, because the mean of its divisors is an integer number (14357626867).

Almost surely, 2^28715253733 is an apocalyptic number.

It is an amenable number.

28715253733 is a deficient number, since it is larger than the sum of its proper divisors (1).

28715253733 is an equidigital number, since it uses as much as digits as its factorization.

28715253733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1058400, while the sum is 46.

The spelling of 28715253733 in words is "twenty-eight billion, seven hundred fifteen million, two hundred fifty-three thousand, seven hundred thirty-three".