2445304219985 has 24 divisors (see below), whose sum is σ = 3415104517608. Its totient is φ = 1673791116800.

The previous prime is 2445304219979. The next prime is 2445304219993. The reversal of 2445304219985 is 5899124035442.

It can be written as a sum of positive squares in 4 ways, for example, as 61933290496 + 2383370929489 = 248864^2 + 1543817^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2445304219985 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 2445304219985.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118866926 + ... + 118887495.

It is an arithmetic number, because the mean of its divisors is an integer number (142296021567).

Almost surely, 2^{2445304219985} is an apocalyptic number.

It is an amenable number.

2445304219985 is a deficient number, since it is larger than the sum of its proper divisors (969800297623).

2445304219985 is a wasteful number, since it uses less digits than its factorization.

2445304219985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237754465 (or 237754454 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 56.

The spelling of 2445304219985 in words is "two trillion, four hundred forty-five billion, three hundred four million, two hundred nineteen thousand, nine hundred eighty-five".