8979486782040 has 256 divisors, whose sum is σ = 30261956400000. Its totient is φ = 2368241270784.

The previous prime is 8979486782003. The next prime is 8979486782051. The reversal of 8979486782040 is 402876849798.

8979486782040 is a `hidden beast` number, since 8 + 9 + 79 + 486 + 78 + 2 + 0 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 8979486782040.

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, 37374616 + ... + 37614104.

Almost surely, 2^{8979486782040} 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 8979486782040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15130978200000).

8979486782040 is an abundant number, since it is smaller than the sum of its proper divisors (21282469617960).

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

8979486782040 is a wasteful number, since it uses less digits than its factorization.

8979486782040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239891 (or 239881 counting only the distinct ones).

The product of its (nonzero) digits is 390168576, while the sum is 72.

The spelling of 8979486782040 in words is "eight trillion, nine hundred seventy-nine billion, four hundred eighty-six million, seven hundred eighty-two thousand, forty".