4639380769 has 3 divisors (see below), whose sum is σ = 4639448883. Its totient is φ = 4639312656.

The previous prime is 4639380751. The next prime is 4639380791. The reversal of 4639380769 is 9670839364.

The square root of 4639380769 is 68113.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 1285581025 + 3353799744 = 35855^2 + 57912^2 .

It is not a de Polignac number, because 4639380769 - 2⁵ = 4639380737 is a prime.

It is a super-2 number, since 2×4639380769² = 43047707839534062722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4639380269) by changing a digit.

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 in 2 ways as a sum of consecutive naturals, for example, 34057 + ... + 102169.

It is an arithmetic number, because the mean of its divisors is an integer number (1546482961).

Almost surely, 2^4639380769 is an apocalyptic number.

4639380769 is the 68113-rd square number.

4639380769 is the 34057-th centered octagonal number.

It is an amenable number.

4639380769 is a deficient number, since it is larger than the sum of its proper divisors (68114).

4639380769 is an frugal number, since it uses more digits than its factorization.

4639380769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136226 (or 68113 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 55.

The cubic root of 4639380769 is about 1667.8359828191.

The spelling of 4639380769 in words is "four billion, six hundred thirty-nine million, three hundred eighty thousand, seven hundred sixty-nine".