47765566556775 has 36 divisors (see below), whose sum is σ = 85554776954088. Its totient is φ = 25474569833280.

The previous prime is 47765566556731. The next prime is 47765566556777. The reversal of 47765566556775 is 57765566556774.

47765566556775 is a `hidden beast` number, since 4 + 7 + 7 + 6 + 5 + 56 + 6 + 556 + 7 + 7 + 5 = 666.

It is not a de Polignac number, because 47765566556775 - 2⁶ = 47765566556711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47765566556694 and 47765566556703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47765566556777) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 13022749 + ... + 16282601.

It is an arithmetic number, because the mean of its divisors is an integer number (2376521582058).

Almost surely, 2^{47765566556775} is an apocalyptic number.

47765566556775 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

47765566556775 is a deficient number, since it is larger than the sum of its proper divisors (37789210397313).

47765566556775 is a wasteful number, since it uses less digits than its factorization.

47765566556775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3324992 (or 3324984 counting only the distinct ones).

The product of its digits is 38896200000, while the sum is 81.

Subtracting 47765566556775 from its reverse (57765566556774), we obtain a palindrome (9999999999999).

The spelling of 47765566556775 in words is "forty-seven trillion, seven hundred sixty-five billion, five hundred sixty-six million, five hundred fifty-six thousand, seven hundred seventy-five".