613639629541 has 2 divisors, whose sum is σ = 613639629542. Its totient is φ = 613639629540.

The previous prime is 613639629517. The next prime is 613639629569. The reversal of 613639629541 is 145926936316.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 331603222500 + 282036407041 = 575850^2 + 531071^2 .

It is a cyclic number.

It is not a de Polignac number, because 613639629541 - 2¹⁷ = 613639498469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (613639629241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306819814770 + 306819814771.

It is an arithmetic number, because the mean of its divisors is an integer number (306819814771).

Almost surely, 2^613639629541 is an apocalyptic number.

It is an amenable number.

613639629541 is a deficient number, since it is larger than the sum of its proper divisors (1).

613639629541 is an equidigital number, since it uses as much as digits as its factorization.

613639629541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6298560, while the sum is 55.

The spelling of 613639629541 in words is "six hundred thirteen billion, six hundred thirty-nine million, six hundred twenty-nine thousand, five hundred forty-one".