978731237376 has 640 divisors, whose sum is σ = 3140175060000. Its totient is φ = 302707113984.

The previous prime is 978731237371. The next prime is 978731237411. The reversal of 978731237376 is 673732137879.

It is a happy number.

978731237376 is a `hidden beast` number, since 9 + 78 + 73 + 123 + 7 + 376 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978731237371) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4918247325 + ... + 4918247523.

Almost surely, 2^978731237376 is an apocalyptic number.

978731237376 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 978731237376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1570087530000).

978731237376 is an abundant number, since it is smaller than the sum of its proper divisors (2161443822624).

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

978731237376 is a wasteful number, since it uses less digits than its factorization.

978731237376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367 (or 330 counting only the distinct ones).

The product of its digits is 56010528, while the sum is 63.

The spelling of 978731237376 in words is "nine hundred seventy-eight billion, seven hundred thirty-one million, two hundred thirty-seven thousand, three hundred seventy-six".