7565380997 has 2 divisors, whose sum is σ = 7565380998. Its totient is φ = 7565380996.

The previous prime is 7565380973. The next prime is 7565381041. The reversal of 7565380997 is 7990835657.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7477752676 + 87628321 = 86474^2 + 9361^2 .

It is a cyclic number.

It is not a de Polignac number, because 7565380997 - 2¹² = 7565376901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7565350997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3782690498 + 3782690499.

It is an arithmetic number, because the mean of its divisors is an integer number (3782690499).

Almost surely, 2^7565380997 is an apocalyptic number.

It is an amenable number.

7565380997 is a deficient number, since it is larger than the sum of its proper divisors (1).

7565380997 is an equidigital number, since it uses as much as digits as its factorization.

7565380997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14288400, while the sum is 59.

The square root of 7565380997 is about 86979.1986454233. The cubic root of 7565380997 is about 1963.1053264185.

The spelling of 7565380997 in words is "seven billion, five hundred sixty-five million, three hundred eighty thousand, nine hundred ninety-seven".