56776726215605 has 8 divisors (see below), whose sum is σ = 74325896136864. Its totient is φ = 41292164520400.

The previous prime is 56776726215593. The next prime is 56776726215613. The reversal of 56776726215605 is 50651262767765.

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

It is not a de Polignac number, because 56776726215605 - 2²² = 56776722021301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 516152056451 + ... + 516152056560.

It is an arithmetic number, because the mean of its divisors is an integer number (9290737017108).

Almost surely, 2^{56776726215605} is an apocalyptic number.

56776726215605 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56776726215605 is a deficient number, since it is larger than the sum of its proper divisors (17549169921259).

56776726215605 is a wasteful number, since it uses less digits than its factorization.

56776726215605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032304113027.

The product of its (nonzero) digits is 222264000, while the sum is 65.

The spelling of 56776726215605 in words is "fifty-six trillion, seven hundred seventy-six billion, seven hundred twenty-six million, two hundred fifteen thousand, six hundred five".