4634336778 has 24 divisors (see below), whose sum is σ = 9782178048. Its totient is φ = 1463474088.

The previous prime is 4634336771. The next prime is 4634336809. The reversal of 4634336778 is 8776334364.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4634336778.

It is not an unprimeable number, because it can be changed into a prime (4634336771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1067626 + ... + 1071957.

It is an arithmetic number, because the mean of its divisors is an integer number (407590752).

Almost surely, 2^4634336778 is an apocalyptic number.

4634336778 is an abundant number, since it is smaller than the sum of its proper divisors (5147841270).

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

4634336778 is a wasteful number, since it uses less digits than its factorization.

4634336778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2139626 (or 2139607 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 51.

The square root of 4634336778 is about 68075.9632910178. The cubic root of 4634336778 is about 1667.2313331406.

The spelling of 4634336778 in words is "four billion, six hundred thirty-four million, three hundred thirty-six thousand, seven hundred seventy-eight".