56727472765 has 4 divisors (see below), whose sum is σ = 68072967324. Its totient is φ = 45381978208.

The previous prime is 56727472667. The next prime is 56727472801.

56727472765 is nontrivially palindromic in base 10.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14569938436 + 42157534329 = 120706^2 + 205323^2 .

It is a cyclic number.

It is not a de Polignac number, because 56727472765 - 2²¹ = 56725375613 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5672747272 + ... + 5672747281.

It is an arithmetic number, because the mean of its divisors is an integer number (17018241831).

Almost surely, 2^56727472765 is an apocalyptic number.

It is an amenable number.

56727472765 is a deficient number, since it is larger than the sum of its proper divisors (11345494559).

56727472765 is a wasteful number, since it uses less digits than its factorization.

56727472765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11345494558.

The product of its digits is 34574400, while the sum is 58.

The spelling of 56727472765 in words is "fifty-six billion, seven hundred twenty-seven million, four hundred seventy-two thousand, seven hundred sixty-five".