1617753542117 has 2 divisors, whose sum is σ = 1617753542118. Its totient is φ = 1617753542116.

The previous prime is 1617753542101. The next prime is 1617753542143. The reversal of 1617753542117 is 7112453577161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1584844316836 + 32909225281 = 1258906^2 + 181409^2 .

It is a cyclic number.

It is not a de Polignac number, because 1617753542117 - 2⁴ = 1617753542101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1617753542177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 808876771058 + 808876771059.

It is an arithmetic number, because the mean of its divisors is an integer number (808876771059).

Almost surely, 2^{1617753542117} is an apocalyptic number.

It is an amenable number.

1617753542117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1617753542117 is an equidigital number, since it uses as much as digits as its factorization.

1617753542117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1234800, while the sum is 50.

The spelling of 1617753542117 in words is "one trillion, six hundred seventeen billion, seven hundred fifty-three million, five hundred forty-two thousand, one hundred seventeen".