8181422770530 has 32 divisors (see below), whose sum is σ = 20312497915200. Its totient is φ = 2106481264832.

The previous prime is 8181422770489. The next prime is 8181422770553. The reversal of 8181422770530 is 350772241818.

It is a self number, because there is not a number n which added to its sum of digits gives 8181422770530.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4701966240 + ... + 4701967979.

It is an arithmetic number, because the mean of its divisors is an integer number (634765559850).

Almost surely, 2^{8181422770530} is an apocalyptic number.

8181422770530 is an abundant number, since it is smaller than the sum of its proper divisors (12131075144670).

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

8181422770530 is a wasteful number, since it uses less digits than its factorization.

8181422770530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9403934258.

The product of its (nonzero) digits is 752640, while the sum is 48.

The spelling of 8181422770530 in words is "eight trillion, one hundred eighty-one billion, four hundred twenty-two million, seven hundred seventy thousand, five hundred thirty".