978948813608 has 64 divisors (see below), whose sum is σ = 1938142080000. Its totient is φ = 462624763392.

The previous prime is 978948813569. The next prime is 978948813637. The reversal of 978948813608 is 806318849879.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25642118 + ... + 25680266.

It is an arithmetic number, because the mean of its divisors is an integer number (30283470000).

Almost surely, 2^978948813608 is an apocalyptic number.

It is an amenable number.

978948813608 is a deficient number, since it is larger than the sum of its proper divisors (959193266392).

978948813608 is a wasteful number, since it uses less digits than its factorization.

978948813608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39834 (or 39830 counting only the distinct ones).

The product of its (nonzero) digits is 167215104, while the sum is 71.

The spelling of 978948813608 in words is "nine hundred seventy-eight billion, nine hundred forty-eight million, eight hundred thirteen thousand, six hundred eight".