8451531982 has 8 divisors (see below), whose sum is σ = 12677784552. Its totient is φ = 4225603800.

The previous prime is 8451531961. The next prime is 8451531983. The reversal of 8451531982 is 2891351548.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8451531983) 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 3 ways as a sum of consecutive naturals, for example, 432 + ... + 130012.

It is an arithmetic number, because the mean of its divisors is an integer number (1584723069).

Almost surely, 2^8451531982 is an apocalyptic number.

8451531982 is a deficient number, since it is larger than the sum of its proper divisors (4226252570).

8451531982 is a wasteful number, since it uses less digits than its factorization.

8451531982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162194.

The product of its digits is 345600, while the sum is 46.

The square root of 8451531982 is about 91932.2140601432. The cubic root of 8451531982 is about 2036.9411402737.

The spelling of 8451531982 in words is "eight billion, four hundred fifty-one million, five hundred thirty-one thousand, nine hundred eighty-two".