4778886888774 has 96 divisors (see below), whose sum is σ = 10972326508416. Its totient is φ = 1501293035520.

The previous prime is 4778886888757. The next prime is 4778886888781.

4778886888774 is a `hidden beast` number, since 477 + 8 + 8 + 8 + 68 + 8 + 8 + 7 + 74 = 666.

4778886888774 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2249334 + ... + 3823254.

It is an arithmetic number, because the mean of its divisors is an integer number (114295067796).

Almost surely, 2^{4778886888774} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4778886888774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5486163254208).

4778886888774 is an abundant number, since it is smaller than the sum of its proper divisors (6193439619642).

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

4778886888774 is a wasteful number, since it uses less digits than its factorization.

4778886888774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574110 (or 1574107 counting only the distinct ones).

The product of its digits is 60423143424, while the sum is 90.

The spelling of 4778886888774 in words is "four trillion, seven hundred seventy-eight billion, eight hundred eighty-six million, eight hundred eighty-eight thousand, seven hundred seventy-four".