613591713044 has 12 divisors (see below), whose sum is σ = 1102806727764. Its totient is φ = 298504076544.

The previous prime is 613591713019. The next prime is 613591713047. The reversal of 613591713044 is 440317195316.

It can be written as a sum of positive squares in 2 ways, for example, as 455911244944 + 157680468100 = 675212^2 + 397090^2 .

It is a junction number, because it is equal to n+sod(n) for n = 613591712986 and 613591713004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613591713047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2072944829 + ... + 2072945124.

It is an arithmetic number, because the mean of its divisors is an integer number (91900560647).

Almost surely, 2^613591713044 is an apocalyptic number.

It is an amenable number.

613591713044 is a deficient number, since it is larger than the sum of its proper divisors (489215014720).

613591713044 is a wasteful number, since it uses less digits than its factorization.

613591713044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4145889994 (or 4145889992 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 613591713044 in words is "six hundred thirteen billion, five hundred ninety-one million, seven hundred thirteen thousand, forty-four".