51613456683 has 4 divisors (see below), whose sum is σ = 68817942248. Its totient is φ = 34408971120.

The previous prime is 51613456673. The next prime is 51613456753. The reversal of 51613456683 is 38665431615.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 51613456683 - 2⁹ = 51613456171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51613456673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8602242778 + ... + 8602242783.

It is an arithmetic number, because the mean of its divisors is an integer number (17204485562).

Almost surely, 2^51613456683 is an apocalyptic number.

51613456683 is a deficient number, since it is larger than the sum of its proper divisors (17204485565).

51613456683 is a wasteful number, since it uses less digits than its factorization.

51613456683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17204485564.

The product of its digits is 1555200, while the sum is 48.

The spelling of 51613456683 in words is "fifty-one billion, six hundred thirteen million, four hundred fifty-six thousand, six hundred eighty-three".