8778127680 has 448 divisors, whose sum is σ = 37258752000. Its totient is φ = 1900578816.

The previous prime is 8778127651. The next prime is 8778127691. The reversal of 8778127680 is 867218778.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 1145301 + ... + 1152939.

Almost surely, 2^8778127680 is an apocalyptic number.

8778127680 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 8778127680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18629376000).

8778127680 is an abundant number, since it is smaller than the sum of its proper divisors (28480624320).

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

8778127680 is a wasteful number, since it uses less digits than its factorization.

8778127680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7691 (or 7675 counting only the distinct ones).

The product of its (nonzero) digits is 2107392, while the sum is 54.

The square root of 8778127680 is about 93691.6628094517. The cubic root of 8778127680 is about 2062.8483299285.

The spelling of 8778127680 in words is "eight billion, seven hundred seventy-eight million, one hundred twenty-seven thousand, six hundred eighty".