4671375456509 has 2 divisors, whose sum is σ = 4671375456510. Its totient is φ = 4671375456508.

The previous prime is 4671375456481. The next prime is 4671375456563. The reversal of 4671375456509 is 9056545731764.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4628328336025 + 43047120484 = 2151355^2 + 207478^2 .

It is a cyclic number.

It is not a de Polignac number, because 4671375456509 - 2²⁰ = 4671374407933 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4671375452509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2335687728254 + 2335687728255.

It is an arithmetic number, because the mean of its divisors is an integer number (2335687728255).

Almost surely, 2^{4671375456509} is an apocalyptic number.

It is an amenable number.

4671375456509 is a deficient number, since it is larger than the sum of its proper divisors (1).

4671375456509 is an equidigital number, since it uses as much as digits as its factorization.

4671375456509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256000, while the sum is 62.

The spelling of 4671375456509 in words is "four trillion, six hundred seventy-one billion, three hundred seventy-five million, four hundred fifty-six thousand, five hundred nine".