8978747518 has 32 divisors (see below), whose sum is σ = 14676480000. Its totient is φ = 4094970336.

The previous prime is 8978747497. The next prime is 8978747539. The reversal of 8978747518 is 8157478798.

8978747518 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (8978747497) and next prime (8978747539).

It is a self number, because there is not a number n which added to its sum of digits gives 8978747518.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1332963 + ... + 1339681.

It is an arithmetic number, because the mean of its divisors is an integer number (458640000).

Almost surely, 2^8978747518 is an apocalyptic number.

8978747518 is a deficient number, since it is larger than the sum of its proper divisors (5697732482).

8978747518 is a wasteful number, since it uses less digits than its factorization.

8978747518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7336.

The product of its digits is 31610880, while the sum is 64.

The square root of 8978747518 is about 94756.2531867950. The cubic root of 8978747518 is about 2078.4452383743.

The spelling of 8978747518 in words is "eight billion, nine hundred seventy-eight million, seven hundred forty-seven thousand, five hundred eighteen".