8645010978 has 32 divisors (see below), whose sum is σ = 17572982400. Its totient is φ = 2834693120.

The previous prime is 8645010973. The next prime is 8645010991. The reversal of 8645010978 is 8790105468.

It is not an unprimeable number, because it can be changed into a prime (8645010973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168676 + ... + 213872.

It is an arithmetic number, because the mean of its divisors is an integer number (549155700).

Almost surely, 2^8645010978 is an apocalyptic number.

8645010978 is an abundant number, since it is smaller than the sum of its proper divisors (8927971422).

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

8645010978 is a wasteful number, since it uses less digits than its factorization.

8645010978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45722.

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 8645010978 is about 92978.5511717622. The cubic root of 8645010978 is about 2052.3677561903.

The spelling of 8645010978 in words is "eight billion, six hundred forty-five million, ten thousand, nine hundred seventy-eight".