245445402248 has 36 divisors (see below), whose sum is σ = 464835310485. Its totient is φ = 121501492576.

The previous prime is 245445402199. The next prime is 245445402253. The reversal of 245445402248 is 842204544542.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 164801897764 + 80643504484 = 405958^2 + 283978^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=350318.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245445402199 and 245445402208.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 149935286 + ... + 149936922.

Almost surely, 2^245445402248 is an apocalyptic number.

It is an amenable number.

245445402248 is a deficient number, since it is larger than the sum of its proper divisors (219389908237).

245445402248 is an frugal number, since it uses more digits than its factorization.

245445402248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3494 (or 1746 counting only the distinct ones).

The product of its (nonzero) digits is 1638400, while the sum is 44.

The spelling of 245445402248 in words is "two hundred forty-five billion, four hundred forty-five million, four hundred two thousand, two hundred forty-eight".