204024025304681 has 2 divisors, whose sum is σ = 204024025304682. Its totient is φ = 204024025304680.

The previous prime is 204024025304599. The next prime is 204024025304719. The reversal of 204024025304681 is 186403520420402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 175916214482281 + 28107810822400 = 13263341^2 + 5301680^2 .

It is a cyclic number.

It is not a de Polignac number, because 204024025304681 - 2¹⁴ = 204024025288297 is a prime.

It is a super-2 number, since 2×204024025304681² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (204024025304381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102012012652340 + 102012012652341.

It is an arithmetic number, because the mean of its divisors is an integer number (102012012652341).

Almost surely, 2^{204024025304681} is an apocalyptic number.

It is an amenable number.

204024025304681 is a deficient number, since it is larger than the sum of its proper divisors (1).

204024025304681 is an equidigital number, since it uses as much as digits as its factorization.

204024025304681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 368640, while the sum is 41.

The spelling of 204024025304681 in words is "two hundred four trillion, twenty-four billion, twenty-five million, three hundred four thousand, six hundred eighty-one".