3985098509453 has 4 divisors (see below), whose sum is σ = 3985112092380. Its totient is φ = 3985084926528.

The previous prime is 3985098509437. The next prime is 3985098509459. The reversal of 3985098509453 is 3549058905893.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2606019376489 + 1379079132964 = 1614317^2 + 1174342^2 .

It is a cyclic number.

It is not a de Polignac number, because 3985098509453 - 2⁴ = 3985098509437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3985098509459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6341438 + ... + 6941471.

It is an arithmetic number, because the mean of its divisors is an integer number (996278023095).

Almost surely, 2^{3985098509453} is an apocalyptic number.

It is an amenable number.

3985098509453 is a deficient number, since it is larger than the sum of its proper divisors (13582927).

3985098509453 is a wasteful number, since it uses less digits than its factorization.

3985098509453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13582926.

The product of its (nonzero) digits is 209952000, while the sum is 68.

The spelling of 3985098509453 in words is "three trillion, nine hundred eighty-five billion, ninety-eight million, five hundred nine thousand, four hundred fifty-three".