4781637966 has 64 divisors (see below), whose sum is σ = 11522211840. Its totient is φ = 1293965280.

The previous prime is 4781637953. The next prime is 4781637967. The reversal of 4781637966 is 6697361874.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4781637967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22125 + ... + 100263.

It is an arithmetic number, because the mean of its divisors is an integer number (180034560).

Almost surely, 2^4781637966 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4781637966, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5761105920).

4781637966 is an abundant number, since it is smaller than the sum of its proper divisors (6740573874).

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

4781637966 is a wasteful number, since it uses less digits than its factorization.

4781637966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78229.

The product of its digits is 9144576, while the sum is 57.

The square root of 4781637966 is about 69149.3887608560. The cubic root of 4781637966 is about 1684.7115903751.

The spelling of 4781637966 in words is "four billion, seven hundred eighty-one million, six hundred thirty-seven thousand, nine hundred sixty-six".