4778636996 has 36 divisors (see below), whose sum is σ = 9742579308. Its totient is φ = 2044905408.

The previous prime is 4778636963. The next prime is 4778637007. The reversal of 4778636996 is 6996368774.

It can be written as a sum of positive squares in 2 ways, for example, as 3829134400 + 949502596 = 61880^2 + 30814^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114686 + ... + 150698.

It is an arithmetic number, because the mean of its divisors is an integer number (270627203).

Almost surely, 2^4778636996 is an apocalyptic number.

It is an amenable number.

4778636996 is an abundant number, since it is smaller than the sum of its proper divisors (4963942312).

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

4778636996 is a wasteful number, since it uses less digits than its factorization.

4778636996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36708 (or 36699 counting only the distinct ones).

The product of its digits is 82301184, while the sum is 65.

The square root of 4778636996 is about 69127.6861756561. The cubic root of 4778636996 is about 1684.3590733075.

The spelling of 4778636996 in words is "four billion, seven hundred seventy-eight million, six hundred thirty-six thousand, nine hundred ninety-six".