47171886431055 has 16 divisors (see below), whose sum is σ = 75475106488320. Its totient is φ = 25158310030368.

The previous prime is 47171886431053. The next prime is 47171886431063. The reversal of 47171886431055 is 55013468817174.

It is a happy number.

It is not a de Polignac number, because 47171886431055 - 2¹ = 47171886431053 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47171886431055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47171886431053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19185474 + ... + 21504096.

It is an arithmetic number, because the mean of its divisors is an integer number (4717194155520).

Almost surely, 2^{47171886431055} is an apocalyptic number.

47171886431055 is a deficient number, since it is larger than the sum of its proper divisors (28303220057265).

47171886431055 is a wasteful number, since it uses less digits than its factorization.

47171886431055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3674950.

The product of its (nonzero) digits is 22579200, while the sum is 60.

The spelling of 47171886431055 in words is "forty-seven trillion, one hundred seventy-one billion, eight hundred eighty-six million, four hundred thirty-one thousand, fifty-five".