1613017941749 has 2 divisors, whose sum is σ = 1613017941750. Its totient is φ = 1613017941748.

The previous prime is 1613017941739. The next prime is 1613017941781. The reversal of 1613017941749 is 9471497103161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1353050524849 + 259967416900 = 1163207^2 + 509870^2 .

It is an emirp because it is prime and its reverse (9471497103161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1613017941749 - 2¹⁶ = 1613017876213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1613017941749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1613017941709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806508970874 + 806508970875.

It is an arithmetic number, because the mean of its divisors is an integer number (806508970875).

Almost surely, 2^{1613017941749} is an apocalyptic number.

It is an amenable number.

1613017941749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1613017941749 is an equidigital number, since it uses as much as digits as its factorization.

1613017941749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 53.

The spelling of 1613017941749 in words is "one trillion, six hundred thirteen billion, seventeen million, nine hundred forty-one thousand, seven hundred forty-nine".