978494983144 has 16 divisors (see below), whose sum is σ = 2096774964000. Its totient is φ = 419354992752.

The previous prime is 978494983127. The next prime is 978494983181. The reversal of 978494983144 is 441389494879.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8736562294 + ... + 8736562405.

It is an arithmetic number, because the mean of its divisors is an integer number (131048435250).

Almost surely, 2^978494983144 is an apocalyptic number.

It is an amenable number.

978494983144 is an abundant number, since it is smaller than the sum of its proper divisors (1118279980856).

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

978494983144 is a wasteful number, since it uses less digits than its factorization.

978494983144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17473124712 (or 17473124708 counting only the distinct ones).

The product of its digits is 250822656, while the sum is 70.

The spelling of 978494983144 in words is "nine hundred seventy-eight billion, four hundred ninety-four million, nine hundred eighty-three thousand, one hundred forty-four".