47213737827831 has 12 divisors (see below), whose sum is σ = 68197712372608. Its totient is φ = 31475783188224.

The previous prime is 47213737827821. The next prime is 47213737827863. The reversal of 47213737827831 is 13872873731274.

47213737827831 is a `hidden beast` number, since 47 + 213 + 7 + 378 + 2 + 7 + 8 + 3 + 1 = 666.

It is not a de Polignac number, because 47213737827831 - 2¹⁹ = 47213737303543 is a prime.

It is a super-2 number, since 2×47213737827831² (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 (47213737827821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4597866 + ... + 10750248.

Almost surely, 2^{47213737827831} is an apocalyptic number.

47213737827831 is a deficient number, since it is larger than the sum of its proper divisors (20983974544777).

47213737827831 is a wasteful number, since it uses less digits than its factorization.

47213737827831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7005062 (or 7005059 counting only the distinct ones).

The product of its digits is 66382848, while the sum is 63.

The spelling of 47213737827831 in words is "forty-seven trillion, two hundred thirteen billion, seven hundred thirty-seven million, eight hundred twenty-seven thousand, eight hundred thirty-one".