7485565897 has 2 divisors, whose sum is σ = 7485565898. Its totient is φ = 7485565896.

The previous prime is 7485565819. The next prime is 7485565933. The reversal of 7485565897 is 7985655847.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6025485376 + 1460080521 = 77624^2 + 38211^2 .

It is a cyclic number.

It is not a de Polignac number, because 7485565897 - 2¹¹ = 7485563849 is a prime.

It is not a weakly prime, because it can be changed into another prime (7485565807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3742782948 + 3742782949.

It is an arithmetic number, because the mean of its divisors is an integer number (3742782949).

Almost surely, 2^7485565897 is an apocalyptic number.

It is an amenable number.

7485565897 is a deficient number, since it is larger than the sum of its proper divisors (1).

7485565897 is an equidigital number, since it uses as much as digits as its factorization.

7485565897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672000, while the sum is 64.

The square root of 7485565897 is about 86519.1649115963. The cubic root of 7485565897 is about 1956.1772896492.

The spelling of 7485565897 in words is "seven billion, four hundred eighty-five million, five hundred sixty-five thousand, eight hundred ninety-seven".