4645623517 has 2 divisors, whose sum is σ = 4645623518. Its totient is φ = 4645623516.

The previous prime is 4645623511. The next prime is 4645623571. The reversal of 4645623517 is 7153265464.

Together with next prime (4645623571) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4097408121 + 548215396 = 64011^2 + 23414^2 .

It is a cyclic number.

It is not a de Polignac number, because 4645623517 - 2³ = 4645623509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4645623511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2322811758 + 2322811759.

It is an arithmetic number, because the mean of its divisors is an integer number (2322811759).

Almost surely, 2^4645623517 is an apocalyptic number.

It is an amenable number.

4645623517 is a deficient number, since it is larger than the sum of its proper divisors (1).

4645623517 is an equidigital number, since it uses as much as digits as its factorization.

4645623517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 604800, while the sum is 43.

The square root of 4645623517 is about 68158.8110004862. The cubic root of 4645623517 is about 1668.5837272329.

The spelling of 4645623517 in words is "four billion, six hundred forty-five million, six hundred twenty-three thousand, five hundred seventeen".