613646732464 has 20 divisors (see below), whose sum is σ = 1190432338704. Its totient is φ = 306438387008.

The previous prime is 613646732443. The next prime is 613646732471. The reversal of 613646732464 is 464237646316.

It is a super-2 number, since 2×613646732464² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24048052 + ... + 24073555.

Almost surely, 2^613646732464 is an apocalyptic number.

It is an amenable number.

613646732464 is a deficient number, since it is larger than the sum of its proper divisors (576785606240).

613646732464 is a wasteful number, since it uses less digits than its factorization.

613646732464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48122412 (or 48122406 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 52.

The spelling of 613646732464 in words is "six hundred thirteen billion, six hundred forty-six million, seven hundred thirty-two thousand, four hundred sixty-four".