4479779745 has 24 divisors (see below), whose sum is σ = 8874230976. Its totient is φ = 2047899168.

The previous prime is 4479779743. The next prime is 4479779749. The reversal of 4479779745 is 5479779744.

4479779745 is a `hidden beast` number, since 4 + 479 + 77 + 97 + 4 + 5 = 666.

It is not a de Polignac number, because 4479779745 - 2¹ = 4479779743 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (4479779741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7110447 + ... + 7111076.

It is an arithmetic number, because the mean of its divisors is an integer number (369759624).

Almost surely, 2^4479779745 is an apocalyptic number.

4479779745 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4479779745 is a deficient number, since it is larger than the sum of its proper divisors (4394451231).

4479779745 is a wasteful number, since it uses less digits than its factorization.

4479779745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14221541 (or 14221538 counting only the distinct ones).

The product of its digits is 62233920, while the sum is 63.

The square root of 4479779745 is about 66931.1567582692. The cubic root of 4479779745 is about 1648.4871035969.

Subtracting 4479779745 from its reverse (5479779744), we obtain a palindrome (999999999).

The spelling of 4479779745 in words is "four billion, four hundred seventy-nine million, seven hundred seventy-nine thousand, seven hundred forty-five".