28748267716513 has 2 divisors, whose sum is σ = 28748267716514. Its totient is φ = 28748267716512.

The previous prime is 28748267716477. The next prime is 28748267716541. The reversal of 28748267716513 is 31561776284782.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15312875969889 + 13435391746624 = 3913167^2 + 3665432^2 .

It is a cyclic number.

It is not a de Polignac number, because 28748267716513 - 2⁹ = 28748267716001 is a prime.

It is not a weakly prime, because it can be changed into another prime (28748267716013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14374133858256 + 14374133858257.

It is an arithmetic number, because the mean of its divisors is an integer number (14374133858257).

Almost surely, 2^{28748267716513} is an apocalyptic number.

It is an amenable number.

28748267716513 is a deficient number, since it is larger than the sum of its proper divisors (1).

28748267716513 is an equidigital number, since it uses as much as digits as its factorization.

28748267716513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 189665280, while the sum is 67.

The spelling of 28748267716513 in words is "twenty-eight trillion, seven hundred forty-eight billion, two hundred sixty-seven million, seven hundred sixteen thousand, five hundred thirteen".