613612512005 has 8 divisors (see below), whose sum is σ = 738084031224. Its totient is φ = 489723998400.

The previous prime is 613612511971. The next prime is 613612512013. The reversal of 613612512005 is 500215216316.

It can be written as a sum of positive squares in 4 ways, for example, as 3148444321 + 610464067684 = 56111^2 + 781322^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 613612512005 - 2³² = 609317544709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145749086 + ... + 145753295.

It is an arithmetic number, because the mean of its divisors is an integer number (92260503903).

Almost surely, 2^613612512005 is an apocalyptic number.

It is an amenable number.

613612512005 is a deficient number, since it is larger than the sum of its proper divisors (124471519219).

613612512005 is a wasteful number, since it uses less digits than its factorization.

613612512005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291502807.

The product of its (nonzero) digits is 10800, while the sum is 32.

The spelling of 613612512005 in words is "six hundred thirteen billion, six hundred twelve million, five hundred twelve thousand, five".