47781179713 has 4 divisors (see below), whose sum is σ = 47782560388. Its totient is φ = 47779799040.

The previous prime is 47781179711. The next prime is 47781179717. The reversal of 47781179713 is 31797118774.

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 29189039104 + 18592140609 = 170848^2 + 136353^2 .

It is a cyclic number.

It is not a de Polignac number, because 47781179713 - 2¹ = 47781179711 is a prime.

It is a super-2 number, since 2×47781179713² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47781179711) 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, 637056 + ... + 708097.

It is an arithmetic number, because the mean of its divisors is an integer number (11945640097).

Almost surely, 2^47781179713 is an apocalyptic number.

It is an amenable number.

47781179713 is a deficient number, since it is larger than the sum of its proper divisors (1380675).

47781179713 is a wasteful number, since it uses less digits than its factorization.

47781179713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380674.

The product of its digits is 2074464, while the sum is 55.

The spelling of 47781179713 in words is "forty-seven billion, seven hundred eighty-one million, one hundred seventy-nine thousand, seven hundred thirteen".