71823443130 has 24 divisors (see below), whose sum is σ = 186740952372. Its totient is φ = 19152918144.

The previous prime is 71823443129. The next prime is 71823443141. The reversal of 71823443130 is 3134432817.

71823443130 is a `hidden beast` number, since 7 + 1 + 82 + 3 + 443 + 130 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 65474062641 + 6349380489 = 255879^2 + 79683^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 399019039 + ... + 399019218.

Almost surely, 2^71823443130 is an apocalyptic number.

71823443130 is an abundant number, since it is smaller than the sum of its proper divisors (114917509242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71823443130 is a wasteful number, since it uses less digits than its factorization.

71823443130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798038270 (or 798038267 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

Adding to 71823443130 its reverse (3134432817), we get a palindrome (74957875947).

The spelling of 71823443130 in words is "seventy-one billion, eight hundred twenty-three million, four hundred forty-three thousand, one hundred thirty".