204450081487 has 2 divisors, whose sum is σ = 204450081488. Its totient is φ = 204450081486.

The previous prime is 204450081481. The next prime is 204450081497. The reversal of 204450081487 is 784180054402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204450081487 - 2²³ = 204441692879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204450081481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102225040743 + 102225040744.

It is an arithmetic number, because the mean of its divisors is an integer number (102225040744).

Almost surely, 2^204450081487 is an apocalyptic number.

204450081487 is a deficient number, since it is larger than the sum of its proper divisors (1).

204450081487 is an equidigital number, since it uses as much as digits as its factorization.

204450081487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 286720, while the sum is 43.

The spelling of 204450081487 in words is "two hundred four billion, four hundred fifty million, eighty-one thousand, four hundred eighty-seven".