978842988472 has 32 divisors (see below), whose sum is σ = 1845671798880. Its totient is φ = 486664433280.

The previous prime is 978842988449. The next prime is 978842988503. The reversal of 978842988472 is 274889248879.

It is a happy number.

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, 15509893 + ... + 15572875.

It is an arithmetic number, because the mean of its divisors is an integer number (57677243715).

Almost surely, 2^978842988472 is an apocalyptic number.

It is an amenable number.

978842988472 is a deficient number, since it is larger than the sum of its proper divisors (866828810408).

978842988472 is a wasteful number, since it uses less digits than its factorization.

978842988472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73903 (or 73899 counting only the distinct ones).

The product of its digits is 1040449536, while the sum is 76.

The spelling of 978842988472 in words is "nine hundred seventy-eight billion, eight hundred forty-two million, nine hundred eighty-eight thousand, four hundred seventy-two".