56427272465 has 8 divisors (see below), whose sum is σ = 68104131048. Its totient is φ = 44880881920.

The previous prime is 56427272449. The next prime is 56427272483.

56427272465 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 13270118416 + 43157154049 = 115196^2 + 207743^2 .

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

It is not a de Polignac number, because 56427272465 - 2⁴ = 56427272449 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32616056 + ... + 32617785.

It is an arithmetic number, because the mean of its divisors is an integer number (8513016381).

Almost surely, 2^56427272465 is an apocalyptic number.

It is an amenable number.

56427272465 is a deficient number, since it is larger than the sum of its proper divisors (11676858583).

56427272465 is a wasteful number, since it uses less digits than its factorization.

56427272465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65234019.

The product of its digits is 5644800, while the sum is 50.

The spelling of 56427272465 in words is "fifty-six billion, four hundred twenty-seven million, two hundred seventy-two thousand, four hundred sixty-five".