8439451952 has 40 divisors (see below), whose sum is σ = 16995797616. Its totient is φ = 4056189696.

The previous prime is 8439451949. The next prime is 8439452017. The reversal of 8439451952 is 2591549348.

It is a super-2 number, since 2×8439451952² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8439451952.

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 7 ways as a sum of consecutive naturals, for example, 36743 + ... + 135014.

Almost surely, 2^8439451952 is an apocalyptic number.

It is an amenable number.

8439451952 is an abundant number, since it is smaller than the sum of its proper divisors (8556345664).

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

8439451952 is a wasteful number, since it uses less digits than its factorization.

8439451952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171885 (or 171879 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 50.

The square root of 8439451952 is about 91866.4898208264. The cubic root of 8439451952 is about 2035.9701903533.

The spelling of 8439451952 in words is "eight billion, four hundred thirty-nine million, four hundred fifty-one thousand, nine hundred fifty-two".