51673332623 has 32 divisors (see below), whose sum is σ = 59118059520. Its totient is φ = 44755486560.

The previous prime is 51673332619. The next prime is 51673332629. The reversal of 51673332623 is 32623337615.

It is a cyclic number.

It is not a de Polignac number, because 51673332623 - 2² = 51673332619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51673332629) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3133586 + ... + 3150032.

It is an arithmetic number, because the mean of its divisors is an integer number (1847439360).

Almost surely, 2^51673332623 is an apocalyptic number.

51673332623 is a deficient number, since it is larger than the sum of its proper divisors (7444726897).

51673332623 is a wasteful number, since it uses less digits than its factorization.

51673332623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16667.

The product of its digits is 408240, while the sum is 41.

The spelling of 51673332623 in words is "fifty-one billion, six hundred seventy-three million, three hundred thirty-two thousand, six hundred twenty-three".