613939107049 has 2 divisors, whose sum is σ = 613939107050. Its totient is φ = 613939107048.

The previous prime is 613939107031. The next prime is 613939107109. The reversal of 613939107049 is 940701939316.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 410566970025 + 203372137024 = 640755^2 + 450968^2 .

It is a cyclic number.

It is not a de Polignac number, because 613939107049 - 2¹¹ = 613939105001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 613939106987 and 613939107005.

It is not a weakly prime, because it can be changed into another prime (613939107449) 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, 306969553524 + 306969553525.

It is an arithmetic number, because the mean of its divisors is an integer number (306969553525).

Almost surely, 2^613939107049 is an apocalyptic number.

It is an amenable number.

613939107049 is a deficient number, since it is larger than the sum of its proper divisors (1).

613939107049 is an equidigital number, since it uses as much as digits as its factorization.

613939107049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1102248, while the sum is 52.

The spelling of 613939107049 in words is "six hundred thirteen billion, nine hundred thirty-nine million, one hundred seven thousand, forty-nine".