4779266978 has 8 divisors (see below), whose sum is σ = 7169495340. Its totient is φ = 2389435200.

The previous prime is 4779266971. The next prime is 4779267041. The reversal of 4779266978 is 8796629774.

It can be written as a sum of positive squares in 2 ways, for example, as 4370135449 + 409131529 = 66107^2 + 20227^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (4779266971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66923 + ... + 118478.

Almost surely, 2^4779266978 is an apocalyptic number.

4779266978 is a deficient number, since it is larger than the sum of its proper divisors (2390228362).

4779266978 is a wasteful number, since it uses less digits than its factorization.

4779266978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198292.

The product of its digits is 64012032, while the sum is 65.

The square root of 4779266978 is about 69132.2426802429. The cubic root of 4779266978 is about 1684.4330880857.

The spelling of 4779266978 in words is "four billion, seven hundred seventy-nine million, two hundred sixty-six thousand, nine hundred seventy-eight".