8161423830 has 144 divisors (see below), whose sum is σ = 24939925920. Its totient is φ = 1846139904.

The previous prime is 8161423807. The next prime is 8161423867. The reversal of 8161423830 is 383241618.

8161423830 is a `hidden beast` number, since 8 + 1 + 614 + 2 + 3 + 8 + 30 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 418231 + ... + 437309.

It is an arithmetic number, because the mean of its divisors is an integer number (173193930).

Almost surely, 2^8161423830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8161423830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12469962960).

8161423830 is an abundant number, since it is smaller than the sum of its proper divisors (16778502090).

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

8161423830 is a wasteful number, since it uses less digits than its factorization.

8161423830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19203 (or 19193 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 8161423830 is about 90340.5990128469. The cubic root of 8161423830 is about 2013.3625086838.

The spelling of 8161423830 in words is "eight billion, one hundred sixty-one million, four hundred twenty-three thousand, eight hundred thirty".