8979767529920 has 448 divisors, whose sum is σ = 25652685864960. Its totient is φ = 2957592268800.

The previous prime is 8979767529913. The next prime is 8979767529947. The reversal of 8979767529920 is 299257679798.

It is a Harshad number since it is a multiple of its sum of digits (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 172056149 + ... + 172108331.

It is an arithmetic number, because the mean of its divisors is an integer number (57260459520).

Almost surely, 2^{8979767529920} is an apocalyptic number.

8979767529920 is a gapful number since it is divisible by the number (80) 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 8979767529920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12826342932480).

8979767529920 is an abundant number, since it is smaller than the sum of its proper divisors (16672918335040).

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

8979767529920 is a wasteful number, since it uses less digits than its factorization.

8979767529920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52344 (or 52334 counting only the distinct ones).

The product of its (nonzero) digits is 2160406080, while the sum is 80.

The spelling of 8979767529920 in words is "eight trillion, nine hundred seventy-nine billion, seven hundred sixty-seven million, five hundred twenty-nine thousand, nine hundred twenty".