8148081420 has 72 divisors (see below), whose sum is σ = 24773164416. Its totient is φ = 2167782912.

The previous prime is 8148081349. The next prime is 8148081421. The reversal of 8148081420 is 241808418.

It is a happy number.

8148081420 is a `hidden beast` number, since 81 + 4 + 80 + 81 + 420 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (8148081421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25669 + ... + 130211.

It is an arithmetic number, because the mean of its divisors is an integer number (344071728).

Almost surely, 2^8148081420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8148081420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12386582208).

8148081420 is an abundant number, since it is smaller than the sum of its proper divisors (16625082996).

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

8148081420 is a wasteful number, since it uses less digits than its factorization.

8148081420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104991 (or 104986 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 36.

The square root of 8148081420 is about 90266.7237690612. The cubic root of 8148081420 is about 2012.2647525133.

Adding to 8148081420 its reverse (241808418), we get a palindrome (8389889838).

The spelling of 8148081420 in words is "eight billion, one hundred forty-eight million, eighty-one thousand, four hundred twenty".