4915253721 has 8 divisors (see below), whose sum is σ = 7489910464. Its totient is φ = 2808716400.

The previous prime is 4915253713. The next prime is 4915253729. The reversal of 4915253721 is 1273525194.

4915253721 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (4915253713) and next prime (4915253729).

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

It is not a de Polignac number, because 4915253721 - 2³ = 4915253713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4915253721.

It is not an unprimeable number, because it can be changed into a prime (4915253729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117029830 + ... + 117029871.

It is an arithmetic number, because the mean of its divisors is an integer number (936238808).

Almost surely, 2^4915253721 is an apocalyptic number.

It is an amenable number.

4915253721 is a deficient number, since it is larger than the sum of its proper divisors (2574656743).

4915253721 is a wasteful number, since it uses less digits than its factorization.

4915253721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234059711.

The product of its digits is 75600, while the sum is 39.

The square root of 4915253721 is about 70108.8704872643. The cubic root of 4915253721 is about 1700.2599050143.

The spelling of 4915253721 in words is "four billion, nine hundred fifteen million, two hundred fifty-three thousand, seven hundred twenty-one".