8170127420 has 48 divisors (see below), whose sum is σ = 21116641728. Its totient is φ = 2585710080.

The previous prime is 8170127401. The next prime is 8170127431. The reversal of 8170127420 is 247210718.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2242721 + ... + 2246360.

It is an arithmetic number, because the mean of its divisors is an integer number (439930036).

Almost surely, 2^8170127420 is an apocalyptic number.

It is an amenable number.

8170127420 is an abundant number, since it is smaller than the sum of its proper divisors (12946514308).

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

8170127420 is a wasteful number, since it uses less digits than its factorization.

8170127420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4489110 (or 4489108 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 8170127420 is about 90388.7571548586. The cubic root of 8170127420 is about 2014.0779580408.

The spelling of 8170127420 in words is "eight billion, one hundred seventy million, one hundred twenty-seven thousand, four hundred twenty".