204284275518377 has 2 divisors, whose sum is σ = 204284275518378. Its totient is φ = 204284275518376.

The previous prime is 204284275518313. The next prime is 204284275518413. The reversal of 204284275518377 is 773815572482402.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 202515213254656 + 1769062263721 = 14230784^2 + 1330061^2 .

It is a cyclic number.

It is not a de Polignac number, because 204284275518377 - 2⁶ = 204284275518313 is a prime.

It is not a weakly prime, because it can be changed into another prime (204284275518077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102142137759188 + 102142137759189.

It is an arithmetic number, because the mean of its divisors is an integer number (102142137759189).

Almost surely, 2^{204284275518377} is an apocalyptic number.

It is an amenable number.

204284275518377 is a deficient number, since it is larger than the sum of its proper divisors (1).

204284275518377 is an equidigital number, since it uses as much as digits as its factorization.

204284275518377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 210739200, while the sum is 65.

The spelling of 204284275518377 in words is "two hundred four trillion, two hundred eighty-four billion, two hundred seventy-five million, five hundred eighteen thousand, three hundred seventy-seven".