8978675646 has 16 divisors (see below), whose sum is σ = 18738105984. Its totient is φ = 2862766104.

The previous prime is 8978675611. The next prime is 8978675687. The reversal of 8978675646 is 6465768798.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32531296 + ... + 32531571.

It is an arithmetic number, because the mean of its divisors is an integer number (1171131624).

Almost surely, 2^8978675646 is an apocalyptic number.

8978675646 is an abundant number, since it is smaller than the sum of its proper divisors (9759430338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8978675646 is a wasteful number, since it uses less digits than its factorization.

8978675646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65062895.

The product of its digits is 121927680, while the sum is 66.

The square root of 8978675646 is about 94755.8739392973. The cubic root of 8978675646 is about 2078.4396925966.

The spelling of 8978675646 in words is "eight billion, nine hundred seventy-eight million, six hundred seventy-five thousand, six hundred forty-six".