1617460140449 has 2 divisors, whose sum is σ = 1617460140450. Its totient is φ = 1617460140448.

The previous prime is 1617460140433. The next prime is 1617460140479. The reversal of 1617460140449 is 9440410647161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1057555140625 + 559904999824 = 1028375^2 + 748268^2 .

It is a cyclic number.

It is not a de Polignac number, because 1617460140449 - 2⁴ = 1617460140433 is a prime.

It is not a weakly prime, because it can be changed into another prime (1617460140479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 808730070224 + 808730070225.

It is an arithmetic number, because the mean of its divisors is an integer number (808730070225).

Almost surely, 2^{1617460140449} is an apocalyptic number.

It is an amenable number.

1617460140449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1617460140449 is an equidigital number, since it uses as much as digits as its factorization.

1617460140449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 1617460140449 in words is "one trillion, six hundred seventeen billion, four hundred sixty million, one hundred forty thousand, four hundred forty-nine".