7606663643 has 2 divisors, whose sum is σ = 7606663644. Its totient is φ = 7606663642.

The previous prime is 7606663639. The next prime is 7606663681. The reversal of 7606663643 is 3463666067.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7606663643 - 2² = 7606663639 is a prime.

It is a super-2 number, since 2×7606663643² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7606663613) 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, 3803331821 + 3803331822.

It is an arithmetic number, because the mean of its divisors is an integer number (3803331822).

Almost surely, 2^7606663643 is an apocalyptic number.

7606663643 is a deficient number, since it is larger than the sum of its proper divisors (1).

7606663643 is an equidigital number, since it uses as much as digits as its factorization.

7606663643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1959552, while the sum is 47.

The square root of 7606663643 is about 87216.1891107379. The cubic root of 7606663643 is about 1966.6695980071.

The spelling of 7606663643 in words is "seven billion, six hundred six million, six hundred sixty-three thousand, six hundred forty-three".