4779644489 has 4 divisors (see below), whose sum is σ = 4890799056. Its totient is φ = 4668489924.

The previous prime is 4779644477. The next prime is 4779644533. The reversal of 4779644489 is 9844469774.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9844469774 = 2 ⋅4922234887.

It is a cyclic number.

It is not a de Polignac number, because 4779644489 - 2²⁴ = 4762867273 is a prime.

It is a super-2 number, since 2×4779644489² = 45690002882456142242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4779644189) 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, 55577219 + ... + 55577304.

It is an arithmetic number, because the mean of its divisors is an integer number (1222699764).

Almost surely, 2^4779644489 is an apocalyptic number.

It is an amenable number.

4779644489 is a deficient number, since it is larger than the sum of its proper divisors (111154567).

4779644489 is a wasteful number, since it uses less digits than its factorization.

4779644489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111154566.

The product of its digits is 48771072, while the sum is 62.

The square root of 4779644489 is about 69134.9729803954. The cubic root of 4779644489 is about 1684.4774376537.

The spelling of 4779644489 in words is "four billion, seven hundred seventy-nine million, six hundred forty-four thousand, four hundred eighty-nine".