978005198336 has 160 divisors (see below), whose sum is σ = 2079547525440. Its totient is φ = 458621485056.

The previous prime is 978005198321. The next prime is 978005198399. The reversal of 978005198336 is 633891500879.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 468616685 + ... + 468618771.

It is an arithmetic number, because the mean of its divisors is an integer number (12997172034).

Almost surely, 2^978005198336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 978005198336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1039773762720).

978005198336 is an abundant number, since it is smaller than the sum of its proper divisors (1101542327104).

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

978005198336 is a wasteful number, since it uses less digits than its factorization.

978005198336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3024 (or 3008 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 59.

The spelling of 978005198336 in words is "nine hundred seventy-eight billion, five million, one hundred ninety-eight thousand, three hundred thirty-six".