1617311545741 has 2 divisors, whose sum is σ = 1617311545742. Its totient is φ = 1617311545740.

The previous prime is 1617311545691. The next prime is 1617311545771. The reversal of 1617311545741 is 1475451137161.

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., 1617259041225 + 52504516 = 1271715^2 + 7246^2 .

It is an emirp because it is prime and its reverse (1475451137161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1617311545741 - 2¹⁷ = 1617311414669 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1617311545691 and 1617311545700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1617311545771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 808655772870 + 808655772871.

It is an arithmetic number, because the mean of its divisors is an integer number (808655772871).

Almost surely, 2^{1617311545741} is an apocalyptic number.

It is an amenable number.

1617311545741 is a deficient number, since it is larger than the sum of its proper divisors (1).

1617311545741 is an equidigital number, since it uses as much as digits as its factorization.

1617311545741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 352800, while the sum is 46.

The spelling of 1617311545741 in words is "one trillion, six hundred seventeen billion, three hundred eleven million, five hundred forty-five thousand, seven hundred forty-one".