8147181408 has 48 divisors (see below), whose sum is σ = 21398952960. Its totient is φ = 2714126976.

The previous prime is 8147181407. The next prime is 8147181421. The reversal of 8147181408 is 8041817418.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 8147181408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8147181407) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 144741 + ... + 192987.

It is an arithmetic number, because the mean of its divisors is an integer number (445811520).

Almost surely, 2^8147181408 is an apocalyptic number.

It is an amenable number.

8147181408 is an abundant number, since it is smaller than the sum of its proper divisors (13251771552).

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

8147181408 is a wasteful number, since it uses less digits than its factorization.

8147181408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50019 (or 50011 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 42.

The square root of 8147181408 is about 90261.7383391213. The cubic root of 8147181408 is about 2012.1906602611.

The spelling of 8147181408 in words is "eight billion, one hundred forty-seven million, one hundred eighty-one thousand, four hundred eight".