4452645623 has 2 divisors, whose sum is σ = 4452645624. Its totient is φ = 4452645622.

The previous prime is 4452645577. The next prime is 4452645643. The reversal of 4452645623 is 3265462544.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4452645623 - 2⁸ = 4452645367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4452645643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2226322811 + 2226322812.

It is an arithmetic number, because the mean of its divisors is an integer number (2226322812).

Almost surely, 2^4452645623 is an apocalyptic number.

4452645623 is a deficient number, since it is larger than the sum of its proper divisors (1).

4452645623 is an equidigital number, since it uses as much as digits as its factorization.

4452645623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 691200, while the sum is 41.

The square root of 4452645623 is about 66728.1471569532. The cubic root of 4452645623 is about 1645.1520537686.

The spelling of 4452645623 in words is "four billion, four hundred fifty-two million, six hundred forty-five thousand, six hundred twenty-three".