4778264864 has 12 divisors (see below), whose sum is σ = 9407209014. Its totient is φ = 2389132416.

The previous prime is 4778264849. The next prime is 4778264879. The reversal of 4778264864 is 4684628774.

It is an interprime number because it is at equal distance from previous prime (4778264849) and next prime (4778264879).

It can be written as a sum of positive squares in only one way, i.e., 2630869264 + 2147395600 = 51292^2 + 46340^2 .

It is a super-2 number, since 2×4778264864² = 45663630221073876992, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74660357 + ... + 74660420.

Almost surely, 2^4778264864 is an apocalyptic number.

It is an amenable number.

4778264864 is a deficient number, since it is larger than the sum of its proper divisors (4628944150).

4778264864 is a wasteful number, since it uses less digits than its factorization.

4778264864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149320787 (or 149320779 counting only the distinct ones).

The product of its digits is 14450688, while the sum is 56.

The square root of 4778264864 is about 69124.9944954790. The cubic root of 4778264864 is about 1684.3153495301.

The spelling of 4778264864 in words is "four billion, seven hundred seventy-eight million, two hundred sixty-four thousand, eight hundred sixty-four".