9846120787439 has 4 divisors (see below), whose sum is σ = 9936452170920. Its totient is φ = 9755789403960.

The previous prime is 9846120787417. The next prime is 9846120787499. The reversal of 9846120787439 is 9347870216489.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9846120787439 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 (9846120787499) 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, 45165691577 + ... + 45165691794.

It is an arithmetic number, because the mean of its divisors is an integer number (2484113042730).

Almost surely, 2^{9846120787439} is an apocalyptic number.

9846120787439 is a deficient number, since it is larger than the sum of its proper divisors (90331383481).

9846120787439 is a wasteful number, since it uses less digits than its factorization.

9846120787439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90331383480.

The product of its (nonzero) digits is 146313216, while the sum is 68.

The spelling of 9846120787439 in words is "nine trillion, eight hundred forty-six billion, one hundred twenty million, seven hundred eighty-seven thousand, four hundred thirty-nine".