4448740997825 has 12 divisors (see below), whose sum is σ = 5534063252268. Its totient is φ = 3547622208000.

The previous prime is 4448740997821. The next prime is 4448740997837. The reversal of 4448740997825 is 5287990478444.

It can be written as a sum of positive squares in 6 ways, for example, as 2191439083201 + 2257301914624 = 1480351^2 + 1502432^2 .

It is not a de Polignac number, because 4448740997825 - 2² = 4448740997821 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4448740997821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 284256776 + ... + 284272425.

It is an arithmetic number, because the mean of its divisors is an integer number (461171937689).

Almost surely, 2^{4448740997825} is an apocalyptic number.

It is an amenable number.

4448740997825 is a deficient number, since it is larger than the sum of its proper divisors (1085322254443).

4448740997825 is a wasteful number, since it uses less digits than its factorization.

4448740997825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568529524 (or 568529519 counting only the distinct ones).

The product of its (nonzero) digits is 650280960, while the sum is 71.

The spelling of 4448740997825 in words is "four trillion, four hundred forty-eight billion, seven hundred forty million, nine hundred ninety-seven thousand, eight hundred twenty-five".