56673578217 has 8 divisors (see below), whose sum is σ = 75570742624. Its totient is φ = 37779399648.

The previous prime is 56673578197. The next prime is 56673578231. The reversal of 56673578217 is 71287537665.

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

It is not a de Polignac number, because 56673578217 - 2¹⁰ = 56673577193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56673578287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 701788 + ... + 778365.

It is an arithmetic number, because the mean of its divisors is an integer number (9446342828).

Almost surely, 2^56673578217 is an apocalyptic number.

It is an amenable number.

56673578217 is a deficient number, since it is larger than the sum of its proper divisors (18897164407).

56673578217 is a wasteful number, since it uses less digits than its factorization.

56673578217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492919.

The product of its digits is 14817600, while the sum is 57.

The spelling of 56673578217 in words is "fifty-six billion, six hundred seventy-three million, five hundred seventy-eight thousand, two hundred seventeen".