613243556401 has 16 divisors (see below), whose sum is σ = 719822404224. Its totient is φ = 511409078784.

The previous prime is 613243556339. The next prime is 613243556441. The reversal of 613243556401 is 104655342316.

It is a cyclic number.

It is not a de Polignac number, because 613243556401 - 2²¹ = 613241459249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (613243556441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9507606 + ... + 9571888.

It is an arithmetic number, because the mean of its divisors is an integer number (44988900264).

Almost surely, 2^613243556401 is an apocalyptic number.

It is an amenable number.

613243556401 is a deficient number, since it is larger than the sum of its proper divisors (106578847823).

613243556401 is a wasteful number, since it uses less digits than its factorization.

613243556401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101160.

The product of its (nonzero) digits is 259200, while the sum is 40.

Adding to 613243556401 its reverse (104655342316), we get a palindrome (717898898717).

The spelling of 613243556401 in words is "six hundred thirteen billion, two hundred forty-three million, five hundred fifty-six thousand, four hundred one".