44748665217 has 40 divisors (see below), whose sum is σ = 67812160680. Its totient is φ = 29404477440.

The previous prime is 44748665207. The next prime is 44748665237. The reversal of 44748665217 is 71256684744.

44748665217 is a `hidden beast` number, since 44 + 74 + 8 + 6 + 6 + 521 + 7 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1185921 + 44747479296 = 1089^2 + 211536^2 .

It is not a de Polignac number, because 44748665217 - 2⁶ = 44748665153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44748665207) 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 39 ways as a sum of consecutive naturals, for example, 1690867 + ... + 1717127.

It is an arithmetic number, because the mean of its divisors is an integer number (1695304017).

Almost surely, 2^44748665217 is an apocalyptic number.

It is an amenable number.

44748665217 is a deficient number, since it is larger than the sum of its proper divisors (23063495463).

44748665217 is a wasteful number, since it uses less digits than its factorization.

44748665217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26575 (or 26566 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 54.

The spelling of 44748665217 in words is "forty-four billion, seven hundred forty-eight million, six hundred sixty-five thousand, two hundred seventeen".