8778551326272 has 504 divisors, whose sum is σ = 31156689747456. Its totient is φ = 2313902702592.

The previous prime is 8778551326243. The next prime is 8778551326291. The reversal of 8778551326272 is 2726231558778.

It is a happy number.

8778551326272 is a `hidden beast` number, since 8 + 7 + 7 + 8 + 551 + 3 + 2 + 6 + 2 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (504).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1974036753 + ... + 1974041199.

It is an arithmetic number, because the mean of its divisors is an integer number (61818828864).

Almost surely, 2^{8778551326272} 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 8778551326272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15578344873728).

8778551326272 is an abundant number, since it is smaller than the sum of its proper divisors (22378138421184).

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

8778551326272 is a wasteful number, since it uses less digits than its factorization.

8778551326272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7395 (or 7369 counting only the distinct ones).

The product of its digits is 79027200, while the sum is 63.

The spelling of 8778551326272 in words is "eight trillion, seven hundred seventy-eight billion, five hundred fifty-one million, three hundred twenty-six thousand, two hundred seventy-two".