9836425781249 has 4 divisors (see below), whose sum is σ = 9863825296320. Its totient is φ = 9809026266180.

The previous prime is 9836425781209. The next prime is 9836425781297. The reversal of 9836425781249 is 9421875246389.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a trimorphic number since its cube, 951726053448220090430974989836425781249, ends in 9836425781249.

It is a de Polignac number, because none of the positive numbers 2^k-9836425781249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9836425781209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13699756997 + ... + 13699757714.

It is an arithmetic number, because the mean of its divisors is an integer number (2465956324080).

Almost surely, 2^{9836425781249} is an apocalyptic number.

It is an amenable number.

9836425781249 is a deficient number, since it is larger than the sum of its proper divisors (27399515071).

9836425781249 is a wasteful number, since it uses less digits than its factorization.

9836425781249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27399515070.

The product of its digits is 209018880, while the sum is 68.

The spelling of 9836425781249 in words is "nine trillion, eight hundred thirty-six billion, four hundred twenty-five million, seven hundred eighty-one thousand, two hundred forty-nine".