8478749130787 has 16 divisors (see below), whose sum is σ = 9425670008832. Its totient is φ = 7573938291360.

The previous prime is 8478749130743. The next prime is 8478749130799. The reversal of 8478749130787 is 7870319478748.

It is a cyclic number.

It is not a de Polignac number, because 8478749130787 - 2²³ = 8478740742179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8478749130737) 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, 29131938 + ... + 29421544.

It is an arithmetic number, because the mean of its divisors is an integer number (589104375552).

Almost surely, 2^{8478749130787} is an apocalyptic number.

8478749130787 is a deficient number, since it is larger than the sum of its proper divisors (946920878045).

8478749130787 is a wasteful number, since it uses less digits than its factorization.

8478749130787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362298.

The product of its (nonzero) digits is 531062784, while the sum is 73.

The spelling of 8478749130787 in words is "eight trillion, four hundred seventy-eight billion, seven hundred forty-nine million, one hundred thirty thousand, seven hundred eighty-seven".