8978497066 has 24 divisors (see below), whose sum is σ = 17090796096. Its totient is φ = 3498115320.

The previous prime is 8978497061. The next prime is 8978497081. The reversal of 8978497066 is 6607948798.

8978497066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×8978497066² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8978496989 and 8978497007.

It is not an unprimeable number, because it can be changed into a prime (8978497061) 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 11 ways as a sum of consecutive naturals, for example, 4163346 + ... + 4165501.

It is an arithmetic number, because the mean of its divisors is an integer number (712116504).

Almost surely, 2^8978497066 is an apocalyptic number.

8978497066 is a deficient number, since it is larger than the sum of its proper divisors (8112299030).

8978497066 is a wasteful number, since it uses less digits than its factorization.

8978497066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8328874 (or 8328867 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 64.

The square root of 8978497066 is about 94754.9316183596. The cubic root of 8978497066 is about 2078.4259129021.

The spelling of 8978497066 in words is "eight billion, nine hundred seventy-eight million, four hundred ninety-seven thousand, sixty-six".