56783923488805 has 8 divisors (see below), whose sum is σ = 68140757118744. Its totient is φ = 45427106169600.

The previous prime is 56783923488793. The next prime is 56783923488833. The reversal of 56783923488805 is 50888432938765.

It can be written as a sum of positive squares in 4 ways, for example, as 24635409047649 + 32148514441156 = 4963407^2 + 5669966^2 .

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

It is not a de Polignac number, because 56783923488805 - 2²¹ = 56783921391653 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, 5722665 + ... + 12096145.

It is an arithmetic number, because the mean of its divisors is an integer number (8517594639843).

Almost surely, 2^{56783923488805} is an apocalyptic number.

It is an amenable number.

56783923488805 is a deficient number, since it is larger than the sum of its proper divisors (11356833629939).

56783923488805 is a wasteful number, since it uses less digits than its factorization.

56783923488805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8155367.

The product of its (nonzero) digits is 2786918400, while the sum is 76.

The spelling of 56783923488805 in words is "fifty-six trillion, seven hundred eighty-three billion, nine hundred twenty-three million, four hundred eighty-eight thousand, eight hundred five".