4778737968 has 40 divisors (see below), whose sum is σ = 12881818368. Its totient is φ = 1523655232.

The previous prime is 4778737933. The next prime is 4778737979. The reversal of 4778737968 is 8697378774.

It is a junction number, because it is equal to n+sod(n) for n = 4778737899 and 4778737908.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2163180 + ... + 2165387.

Almost surely, 2^4778737968 is an apocalyptic number.

4778737968 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

4778737968 is an abundant number, since it is smaller than the sum of its proper divisors (8103080400).

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

4778737968 is a wasteful number, since it uses less digits than its factorization.

4778737968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4328601 (or 4328595 counting only the distinct ones).

The product of its digits is 99574272, while the sum is 66.

The square root of 4778737968 is about 69128.4165014649. The cubic root of 4778737968 is about 1684.3709366559.

The spelling of 4778737968 in words is "four billion, seven hundred seventy-eight million, seven hundred thirty-seven thousand, nine hundred sixty-eight".