204737245423 has 2 divisors, whose sum is σ = 204737245424. Its totient is φ = 204737245422.

The previous prime is 204737245393. The next prime is 204737245451. The reversal of 204737245423 is 324542737402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204737245423 - 2¹³ = 204737237231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204737245423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204737240423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102368622711 + 102368622712.

It is an arithmetic number, because the mean of its divisors is an integer number (102368622712).

Almost surely, 2^204737245423 is an apocalyptic number.

204737245423 is a deficient number, since it is larger than the sum of its proper divisors (1).

204737245423 is an equidigital number, since it uses as much as digits as its factorization.

204737245423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1128960, while the sum is 43.

The spelling of 204737245423 in words is "two hundred four billion, seven hundred thirty-seven million, two hundred forty-five thousand, four hundred twenty-three".