8778431712 has 192 divisors, whose sum is σ = 25732836864. Its totient is φ = 2606039040.

The previous prime is 8778431657. The next prime is 8778431741. The reversal of 8778431712 is 2171348778.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3639787 + ... + 3642197.

It is an arithmetic number, because the mean of its divisors is an integer number (134025192).

Almost surely, 2^8778431712 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 8778431712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12866418432).

8778431712 is an abundant number, since it is smaller than the sum of its proper divisors (16954405152).

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

8778431712 is a wasteful number, since it uses less digits than its factorization.

8778431712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2561 (or 2553 counting only the distinct ones).

The product of its digits is 526848, while the sum is 48.

The square root of 8778431712 is about 93693.2853090338. The cubic root of 8778431712 is about 2062.8721453588.

The spelling of 8778431712 in words is "eight billion, seven hundred seventy-eight million, four hundred thirty-one thousand, seven hundred twelve".