7451648563 has 2 divisors, whose sum is σ = 7451648564. Its totient is φ = 7451648562.

The previous prime is 7451648509. The next prime is 7451648623. The reversal of 7451648563 is 3658461547.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7451648563 - 2²¹ = 7449551411 is a prime.

It is not a weakly prime, because it can be changed into another prime (7451648363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3725824281 + 3725824282.

It is an arithmetic number, because the mean of its divisors is an integer number (3725824282).

Almost surely, 2^7451648563 is an apocalyptic number.

7451648563 is a deficient number, since it is larger than the sum of its proper divisors (1).

7451648563 is an equidigital number, since it uses as much as digits as its factorization.

7451648563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2419200, while the sum is 49.

The square root of 7451648563 is about 86322.9318489589. The cubic root of 7451648563 is about 1953.2183158412.

The spelling of 7451648563 in words is "seven billion, four hundred fifty-one million, six hundred forty-eight thousand, five hundred sixty-three".