4520217749 has 8 divisors (see below), whose sum is σ = 4660652832. Its totient is φ = 4381387920.

The previous prime is 4520217721. The next prime is 4520217773. The reversal of 4520217749 is 9477120254.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4520217749 - 2¹² = 4520213653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4520217719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395594 + ... + 406859.

It is an arithmetic number, because the mean of its divisors is an integer number (582581604).

Almost surely, 2^4520217749 is an apocalyptic number.

It is an amenable number.

4520217749 is a deficient number, since it is larger than the sum of its proper divisors (140435083).

4520217749 is a wasteful number, since it uses less digits than its factorization.

4520217749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802627.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 4520217749 is about 67232.5646469031. The cubic root of 4520217749 is about 1653.4324321625.

The spelling of 4520217749 in words is "four billion, five hundred twenty million, two hundred seventeen thousand, seven hundred forty-nine".