7646545663 has 2 divisors, whose sum is σ = 7646545664. Its totient is φ = 7646545662.

The previous prime is 7646545639. The next prime is 7646545693. The reversal of 7646545663 is 3665456467.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7646545663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7646545663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7646545603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3823272831 + 3823272832.

It is an arithmetic number, because the mean of its divisors is an integer number (3823272832).

Almost surely, 2^7646545663 is an apocalyptic number.

7646545663 is a deficient number, since it is larger than the sum of its proper divisors (1).

7646545663 is an equidigital number, since it uses as much as digits as its factorization.

7646545663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10886400, while the sum is 52.

The square root of 7646545663 is about 87444.5290627150. The cubic root of 7646545663 is about 1970.1007157317.

The spelling of 7646545663 in words is "seven billion, six hundred forty-six million, five hundred forty-five thousand, six hundred sixty-three".