8371805472 has 144 divisors (see below), whose sum is σ = 24402137760. Its totient is φ = 2721638400.

The previous prime is 8371805461. The next prime is 8371805473. The reversal of 8371805472 is 2745081738.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×8371805472² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8371805473) 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, 2224072 + ... + 2227832.

It is an arithmetic number, because the mean of its divisors is an integer number (169459290).

Almost surely, 2^8371805472 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 8371805472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12201068880).

8371805472 is an abundant number, since it is smaller than the sum of its proper divisors (16030332288).

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

8371805472 is a wasteful number, since it uses less digits than its factorization.

8371805472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3967 (or 3956 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 8371805472 is about 91497.5708530013. The cubic root of 8371805472 is about 2030.5158138217.

The spelling of 8371805472 in words is "eight billion, three hundred seventy-one million, eight hundred five thousand, four hundred seventy-two".