8179149420 has 96 divisors (see below), whose sum is σ = 27403669440. Its totient is φ = 2013327360.

The previous prime is 8179149379. The next prime is 8179149421. The reversal of 8179149420 is 249419718.

It is a happy number.

8179149420 is a `hidden beast` number, since 81 + 7 + 9 + 149 + 420 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (8179149421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 575541 + ... + 589580.

It is an arithmetic number, because the mean of its divisors is an integer number (285454890).

Almost surely, 2^8179149420 is an apocalyptic number.

It is an amenable number.

8179149420 is an abundant number, since it is smaller than the sum of its proper divisors (19224520020).

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

8179149420 is a wasteful number, since it uses less digits than its factorization.

8179149420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165152 (or 1165144 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 8179149420 is about 90438.6500341530. The cubic root of 8179149420 is about 2014.8190450910.

The spelling of 8179149420 in words is "eight billion, one hundred seventy-nine million, one hundred forty-nine thousand, four hundred twenty".