648575361547 has 2 divisors, whose sum is σ = 648575361548. Its totient is φ = 648575361546.

The previous prime is 648575361527. The next prime is 648575361563. The reversal of 648575361547 is 745163575846.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 648575361547 - 2²³ = 648566972939 is a prime.

It is not a weakly prime, because it can be changed into another prime (648575361527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324287680773 + 324287680774.

It is an arithmetic number, because the mean of its divisors is an integer number (324287680774).

Almost surely, 2^648575361547 is an apocalyptic number.

648575361547 is a deficient number, since it is larger than the sum of its proper divisors (1).

648575361547 is an equidigital number, since it uses as much as digits as its factorization.

648575361547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672000, while the sum is 61.

The spelling of 648575361547 in words is "six hundred forty-eight billion, five hundred seventy-five million, three hundred sixty-one thousand, five hundred forty-seven".