613601636057 has 2 divisors, whose sum is σ = 613601636058. Its totient is φ = 613601636056.

The previous prime is 613601636051. The next prime is 613601636143. The reversal of 613601636057 is 750636106316.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 501201697936 + 112399938121 = 707956^2 + 335261^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-613601636057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 613601635999 and 613601636017.

It is not a weakly prime, because it can be changed into another prime (613601636051) 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, 306800818028 + 306800818029.

It is an arithmetic number, because the mean of its divisors is an integer number (306800818029).

Almost surely, 2^613601636057 is an apocalyptic number.

It is an amenable number.

613601636057 is a deficient number, since it is larger than the sum of its proper divisors (1).

613601636057 is an equidigital number, since it uses as much as digits as its factorization.

613601636057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 408240, while the sum is 44.

The spelling of 613601636057 in words is "six hundred thirteen billion, six hundred one million, six hundred thirty-six thousand, fifty-seven".