204770989147 has 2 divisors, whose sum is σ = 204770989148. Its totient is φ = 204770989146.

The previous prime is 204770989091. The next prime is 204770989153. The reversal of 204770989147 is 741989077402.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204770989147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204770989091 and 204770989100.

It is not a weakly prime, because it can be changed into another prime (204770989187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102385494573 + 102385494574.

It is an arithmetic number, because the mean of its divisors is an integer number (102385494574).

Almost surely, 2^204770989147 is an apocalyptic number.

204770989147 is a deficient number, since it is larger than the sum of its proper divisors (1).

204770989147 is an equidigital number, since it uses as much as digits as its factorization.

204770989147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7112448, while the sum is 58.

The spelling of 204770989147 in words is "two hundred four billion, seven hundred seventy million, nine hundred eighty-nine thousand, one hundred forty-seven".