4778497152 has 480 divisors, whose sum is σ = 16890890940. Its totient is φ = 1332080640.

The previous prime is 4778497147. The next prime is 4778497177. The reversal of 4778497152 is 2517948774.

4778497152 is a `hidden beast` number, since 477 + 84 + 97 + 1 + 5 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4747761216 + 30735936 = 68904^2 + 5544^2 .

It is a super-2 number, since 2×4778497152² = 45668070063344222208, which contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 16308718 + ... + 16309010.

Almost surely, 2^4778497152 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 4778497152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8445445470).

4778497152 is an abundant number, since it is smaller than the sum of its proper divisors (12112393788).

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

4778497152 is a wasteful number, since it uses less digits than its factorization.

4778497152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354 (or 322 counting only the distinct ones).

The product of its digits is 3951360, while the sum is 54.

The square root of 4778497152 is about 69126.6746777248. The cubic root of 4778497152 is about 1684.3426425549.

The spelling of 4778497152 in words is "four billion, seven hundred seventy-eight million, four hundred ninety-seven thousand, one hundred fifty-two".