9959254731849 has 16 divisors (see below), whose sum is σ = 13295868388992. Its totient is φ = 6631073000448.

The previous prime is 9959254731827. The next prime is 9959254731893. The reversal of 9959254731849 is 9481374529599.

It is not a de Polignac number, because 9959254731849 - 2⁸ = 9959254731593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9959254731649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49568617 + ... + 49769129.

It is an arithmetic number, because the mean of its divisors is an integer number (830991774312).

Almost surely, 2^{9959254731849} is an apocalyptic number.

It is an amenable number.

9959254731849 is a deficient number, since it is larger than the sum of its proper divisors (3336613657143).

9959254731849 is a wasteful number, since it uses less digits than its factorization.

9959254731849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221456.

The product of its digits is 881798400, while the sum is 75.

The spelling of 9959254731849 in words is "nine trillion, nine hundred fifty-nine billion, two hundred fifty-four million, seven hundred thirty-one thousand, eight hundred forty-nine".