9859962453791 has 4 divisors (see below), whose sum is σ = 10178025758784. Its totient is φ = 9541899148800.

The previous prime is 9859962453743. The next prime is 9859962453793. The reversal of 9859962453791 is 1973542699589.

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

It is a cyclic number.

It is not a de Polignac number, because 9859962453791 - 2¹⁸ = 9859962191647 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 (9859962453793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159031652450 + ... + 159031652511.

It is an arithmetic number, because the mean of its divisors is an integer number (2544506439696).

Almost surely, 2^{9859962453791} is an apocalyptic number.

9859962453791 is a deficient number, since it is larger than the sum of its proper divisors (318063304993).

9859962453791 is a wasteful number, since it uses less digits than its factorization.

9859962453791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318063304992.

The product of its digits is 1322697600, while the sum is 77.

The spelling of 9859962453791 in words is "nine trillion, eight hundred fifty-nine billion, nine hundred sixty-two million, four hundred fifty-three thousand, seven hundred ninety-one".