28310395769 has 2 divisors, whose sum is σ = 28310395770. Its totient is φ = 28310395768.

The previous prime is 28310395759. The next prime is 28310395787. The reversal of 28310395769 is 96759301382.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25908121600 + 2402274169 = 160960^2 + 49013^2 .

It is a cyclic number.

It is not a de Polignac number, because 28310395769 - 2⁴ = 28310395753 is a prime.

It is a super-2 number, since 2×28310395769² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28310395769.

It is not a weakly prime, because it can be changed into another prime (28310395759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14155197884 + 14155197885.

It is an arithmetic number, because the mean of its divisors is an integer number (14155197885).

Almost surely, 2^28310395769 is an apocalyptic number.

It is an amenable number.

28310395769 is a deficient number, since it is larger than the sum of its proper divisors (1).

28310395769 is an equidigital number, since it uses as much as digits as its factorization.

28310395769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2449440, while the sum is 53.

The spelling of 28310395769 in words is "twenty-eight billion, three hundred ten million, three hundred ninety-five thousand, seven hundred sixty-nine".