4354385564623 has 2 divisors, whose sum is σ = 4354385564624. Its totient is φ = 4354385564622.

The previous prime is 4354385564597. The next prime is 4354385564687. The reversal of 4354385564623 is 3264655834534.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4354385564623 - 2²¹ = 4354383467471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4354385561623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2177192782311 + 2177192782312.

It is an arithmetic number, because the mean of its divisors is an integer number (2177192782312).

Almost surely, 2^{4354385564623} is an apocalyptic number.

4354385564623 is a deficient number, since it is larger than the sum of its proper divisors (1).

4354385564623 is an equidigital number, since it uses as much as digits as its factorization.

4354385564623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416000, while the sum is 58.

The spelling of 4354385564623 in words is "four trillion, three hundred fifty-four billion, three hundred eighty-five million, five hundred sixty-four thousand, six hundred twenty-three".