613613212357 has 2 divisors, whose sum is σ = 613613212358. Its totient is φ = 613613212356.

The previous prime is 613613212273. The next prime is 613613212369. The reversal of 613613212357 is 753212316316.

613613212357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 426547447236 + 187065765121 = 653106^2 + 432511^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-613613212357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (613613212657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306806606178 + 306806606179.

It is an arithmetic number, because the mean of its divisors is an integer number (306806606179).

Almost surely, 2^613613212357 is an apocalyptic number.

It is an amenable number.

613613212357 is a deficient number, since it is larger than the sum of its proper divisors (1).

613613212357 is an equidigital number, since it uses as much as digits as its factorization.

613613212357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 40.

The spelling of 613613212357 in words is "six hundred thirteen billion, six hundred thirteen million, two hundred twelve thousand, three hundred fifty-seven".