4387148720217 has 6 divisors (see below), whose sum is σ = 6336992595882. Its totient is φ = 2924765813472.

The previous prime is 4387148720173. The next prime is 4387148720219. The reversal of 4387148720217 is 7120278417834.

It is a happy number.

4387148720217 is a `hidden beast` number, since 4 + 387 + 1 + 48 + 7 + 2 + 0 + 217 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3287563690896 + 1099585029321 = 1813164^2 + 1048611^2 .

It is not a de Polignac number, because 4387148720217 - 2⁶ = 4387148720153 is a prime.

It is a super-4 number, since 4×4387148720217⁴ (a number of 52 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (4387148720219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 243730484448 + ... + 243730484465.

It is an arithmetic number, because the mean of its divisors is an integer number (1056165432647).

Almost surely, 2^{4387148720217} is an apocalyptic number.

It is an amenable number.

4387148720217 is a deficient number, since it is larger than the sum of its proper divisors (1949843875665).

4387148720217 is a wasteful number, since it uses less digits than its factorization.

4387148720217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487460968919 (or 487460968916 counting only the distinct ones).

The product of its (nonzero) digits is 4214784, while the sum is 54.

The spelling of 4387148720217 in words is "four trillion, three hundred eighty-seven billion, one hundred forty-eight million, seven hundred twenty thousand, two hundred seventeen".