8778312040960 has 640 divisors, whose sum is σ = 27470232649728. Its totient is φ = 2610413568000.

The previous prime is 8778312040919. The next prime is 8778312040987. The reversal of 8778312040960 is 690402138778.

It is a tau number, because it is divible by the number of its divisors (640).

It is a Harshad number since it is a multiple of its sum of digits (55).

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, 433851004 + ... + 433871236.

Almost surely, 2^{8778312040960} is an apocalyptic number.

8778312040960 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 8778312040960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13735116324864).

8778312040960 is an abundant number, since it is smaller than the sum of its proper divisors (18691920608768).

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

8778312040960 is a wasteful number, since it uses less digits than its factorization.

8778312040960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20376 (or 20360 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 8778312040960 in words is "eight trillion, seven hundred seventy-eight billion, three hundred twelve million, forty thousand, nine hundred sixty".