408745016896361 has 2 divisors, whose sum is σ = 408745016896362. Its totient is φ = 408745016896360.

The previous prime is 408745016896357. The next prime is 408745016896397. The reversal of 408745016896361 is 163698610547804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 321559098620761 + 87185918275600 = 17932069^2 + 9337340^2 .

It is a cyclic number.

It is not a de Polignac number, because 408745016896361 - 2² = 408745016896357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 408745016896291 and 408745016896300.

It is not a weakly prime, because it can be changed into another prime (408745016896961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204372508448180 + 204372508448181.

It is an arithmetic number, because the mean of its divisors is an integer number (204372508448181).

Almost surely, 2^{408745016896361} is an apocalyptic number.

It is an amenable number.

408745016896361 is a deficient number, since it is larger than the sum of its proper divisors (1).

408745016896361 is an equidigital number, since it uses as much as digits as its factorization.

408745016896361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209018880, while the sum is 68.

The spelling of 408745016896361 in words is "four hundred eight trillion, seven hundred forty-five billion, sixteen million, eight hundred ninety-six thousand, three hundred sixty-one".