8481449787 has 16 divisors (see below), whose sum is σ = 11978842752. Its totient is φ = 5319457920.

The previous prime is 8481449777. The next prime is 8481449797. The reversal of 8481449787 is 7879441848.

It is an interprime number because it is at equal distance from previous prime (8481449777) and next prime (8481449797).

It is not a de Polignac number, because 8481449787 - 2⁶ = 8481449723 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8481449787.

It is not an unprimeable number, because it can be changed into a prime (8481449737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92112 + ... + 159522.

It is an arithmetic number, because the mean of its divisors is an integer number (748677672).

Almost surely, 2^8481449787 is an apocalyptic number.

8481449787 is a deficient number, since it is larger than the sum of its proper divisors (3497392965).

8481449787 is a wasteful number, since it uses less digits than its factorization.

8481449787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69898.

The product of its digits is 14450688, while the sum is 60.

The square root of 8481449787 is about 92094.7869697303. The cubic root of 8481449787 is about 2039.3418505977.

The spelling of 8481449787 in words is "eight billion, four hundred eighty-one million, four hundred forty-nine thousand, seven hundred eighty-seven".