7565632889 has 2 divisors, whose sum is σ = 7565632890. Its totient is φ = 7565632888.

The previous prime is 7565632861. The next prime is 7565632931. The reversal of 7565632889 is 9882365657.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4956160000 + 2609472889 = 70400^2 + 51083^2 .

It is a cyclic number.

It is not a de Polignac number, because 7565632889 - 2²⁴ = 7548855673 is a prime.

It is a super-2 number, since 2×7565632889² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7565634889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3782816444 + 3782816445.

It is an arithmetic number, because the mean of its divisors is an integer number (3782816445).

Almost surely, 2^7565632889 is an apocalyptic number.

It is an amenable number.

7565632889 is a deficient number, since it is larger than the sum of its proper divisors (1).

7565632889 is an equidigital number, since it uses as much as digits as its factorization.

7565632889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21772800, while the sum is 59.

The square root of 7565632889 is about 86980.6466347543. The cubic root of 7565632889 is about 1963.1271136023.

The spelling of 7565632889 in words is "seven billion, five hundred sixty-five million, six hundred thirty-two thousand, eight hundred eighty-nine".