4643454146509 has 2 divisors, whose sum is σ = 4643454146510. Its totient is φ = 4643454146508.

The previous prime is 4643454146459. The next prime is 4643454146543. The reversal of 4643454146509 is 9056414543464.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3935799693225 + 707654453284 = 1983885^2 + 841222^2 .

It is a cyclic number.

It is not a de Polignac number, because 4643454146509 - 2¹⁵ = 4643454113741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4643454146509.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4643454146599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2321727073254 + 2321727073255.

It is an arithmetic number, because the mean of its divisors is an integer number (2321727073255).

Almost surely, 2^{4643454146509} is an apocalyptic number.

It is an amenable number.

4643454146509 is a deficient number, since it is larger than the sum of its proper divisors (1).

4643454146509 is an equidigital number, since it uses as much as digits as its factorization.

4643454146509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24883200, while the sum is 55.

The spelling of 4643454146509 in words is "four trillion, six hundred forty-three billion, four hundred fifty-four million, one hundred forty-six thousand, five hundred nine".