305672366325649 has 2 divisors, whose sum is σ = 305672366325650. Its totient is φ = 305672366325648.

The previous prime is 305672366325617. The next prime is 305672366325769. The reversal of 305672366325649 is 946523663276503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 166057629732225 + 139614736593424 = 12886335^2 + 11815868^2 .

It is a cyclic number.

It is not a de Polignac number, because 305672366325649 - 2⁵ = 305672366325617 is a prime.

It is not a weakly prime, because it can be changed into another prime (305672366325349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152836183162824 + 152836183162825.

It is an arithmetic number, because the mean of its divisors is an integer number (152836183162825).

Almost surely, 2^{305672366325649} is an apocalyptic number.

It is an amenable number.

305672366325649 is a deficient number, since it is larger than the sum of its proper divisors (1).

305672366325649 is an equidigital number, since it uses as much as digits as its factorization.

305672366325649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 881798400, while the sum is 67.

The spelling of 305672366325649 in words is "three hundred five trillion, six hundred seventy-two billion, three hundred sixty-six million, three hundred twenty-five thousand, six hundred forty-nine".