28369713761 has 2 divisors, whose sum is σ = 28369713762. Its totient is φ = 28369713760.

The previous prime is 28369713683. The next prime is 28369713787. The reversal of 28369713761 is 16731796382.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16414478161 + 11955235600 = 128119^2 + 109340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28369713761 is a prime.

It is not a weakly prime, because it can be changed into another prime (28369713161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14184856880 + 14184856881.

It is an arithmetic number, because the mean of its divisors is an integer number (14184856881).

Almost surely, 2^28369713761 is an apocalyptic number.

It is an amenable number.

28369713761 is a deficient number, since it is larger than the sum of its proper divisors (1).

28369713761 is an equidigital number, since it uses as much as digits as its factorization.

28369713761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2286144, while the sum is 53.

The spelling of 28369713761 in words is "twenty-eight billion, three hundred sixty-nine million, seven hundred thirteen thousand, seven hundred sixty-one".