47788174217869 has 4 divisors (see below), whose sum is σ = 47790389013244. Its totient is φ = 47785959422496.

The previous prime is 47788174217867. The next prime is 47788174217879. The reversal of 47788174217869 is 96871247188774.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18727039875625 + 29061134342244 = 4327475^2 + 5390838^2 .

It is a cyclic number.

It is not a de Polignac number, because 47788174217869 - 2¹ = 47788174217867 is a prime.

It is a super-2 number, since 2×47788174217869² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47788174217867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1107365322 + ... + 1107408475.

It is an arithmetic number, because the mean of its divisors is an integer number (11947597253311).

Almost surely, 2^{47788174217869} is an apocalyptic number.

It is an amenable number.

47788174217869 is a deficient number, since it is larger than the sum of its proper divisors (2214795375).

47788174217869 is a wasteful number, since it uses less digits than its factorization.

47788174217869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2214795374.

The product of its digits is 2124251136, while the sum is 79.

The spelling of 47788174217869 in words is "forty-seven trillion, seven hundred eighty-eight billion, one hundred seventy-four million, two hundred seventeen thousand, eight hundred sixty-nine".