47091717505 has 16 divisors (see below), whose sum is σ = 64588930560. Its totient is φ = 32288461632.

The previous prime is 47091717487. The next prime is 47091717577. The reversal of 47091717505 is 50571719074.

47091717505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47091717505 - 2²¹ = 47089620353 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 359451 + ... + 472639.

It is an arithmetic number, because the mean of its divisors is an integer number (4036808160).

Almost surely, 2^47091717505 is an apocalyptic number.

It is an amenable number.

47091717505 is a deficient number, since it is larger than the sum of its proper divisors (17497213055).

47091717505 is a wasteful number, since it uses less digits than its factorization.

47091717505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125088.

The product of its (nonzero) digits is 308700, while the sum is 46.

The spelling of 47091717505 in words is "forty-seven billion, ninety-one million, seven hundred seventeen thousand, five hundred five".