613113550072 has 8 divisors (see below), whose sum is σ = 1149587906400. Its totient is φ = 306556775032.

The previous prime is 613113550067. The next prime is 613113550081. The reversal of 613113550072 is 270055311316.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38319596872 + ... + 38319596887.

It is an arithmetic number, because the mean of its divisors is an integer number (143698488300).

Almost surely, 2^613113550072 is an apocalyptic number.

It is an amenable number.

613113550072 is a deficient number, since it is larger than the sum of its proper divisors (536474356328).

613113550072 is a wasteful number, since it uses less digits than its factorization.

613113550072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76639193765 (or 76639193761 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 34.

Adding to 613113550072 its reverse (270055311316), we get a palindrome (883168861388).

The spelling of 613113550072 in words is "six hundred thirteen billion, one hundred thirteen million, five hundred fifty thousand, seventy-two".