8170537481 has 8 divisors (see below), whose sum is σ = 8345842560. Its totient is φ = 7995293488.

The previous prime is 8170537477. The next prime is 8170537493. The reversal of 8170537481 is 1847350718.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8170537481 - 2² = 8170537477 is a prime.

It is a super-2 number, since 2×8170537481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8178537481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345230 + ... + 368136.

It is an arithmetic number, because the mean of its divisors is an integer number (1043230320).

Almost surely, 2^8170537481 is an apocalyptic number.

It is an amenable number.

8170537481 is a deficient number, since it is larger than the sum of its proper divisors (175305079).

8170537481 is a wasteful number, since it uses less digits than its factorization.

8170537481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30543.

The product of its (nonzero) digits is 188160, while the sum is 44.

The square root of 8170537481 is about 90391.0254450075. The cubic root of 8170537481 is about 2014.1116531907. Note that the first 3 decimals are identical.

The spelling of 8170537481 in words is "eight billion, one hundred seventy million, five hundred thirty-seven thousand, four hundred eighty-one".