4639789456 has 15 divisors (see below), whose sum is σ = 8990120001. Its totient is φ = 2319758496.

The previous prime is 4639789411. The next prime is 4639789459. The reversal of 4639789456 is 6549879364.

The square root of 4639789456 is 68116.

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

It can be written as a sum of positive squares in only one way, i.e., 3710759056 + 929030400 = 60916^2 + 30480^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4639789394 and 4639789403.

It is not an unprimeable number, because it can be changed into a prime (4639789459) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 263950 + ... + 280978.

Almost surely, 2^4639789456 is an apocalyptic number.

4639789456 is the 68116-th square number.

It is an amenable number.

4639789456 is a deficient number, since it is larger than the sum of its proper divisors (4350330545).

4639789456 is an frugal number, since it uses more digits than its factorization.

4639789456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34066 (or 17031 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 61.

The cubic root of 4639789456 is about 1667.8849550781.

The spelling of 4639789456 in words is "four billion, six hundred thirty-nine million, seven hundred eighty-nine thousand, four hundred fifty-six".