8961957618159 has 16 divisors (see below), whose sum is σ = 14706802245632. Its totient is φ = 4727186435808.

The previous prime is 8961957618149. The next prime is 8961957618169. The reversal of 8961957618159 is 9518167591698.

It is an interprime number because it is at equal distance from previous prime (8961957618149) and next prime (8961957618169).

It is not a de Polignac number, because 8961957618159 - 2¹¹ = 8961957616111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8961957618149) 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 15 ways as a sum of consecutive naturals, for example, 16413841519 + ... + 16413842064.

It is an arithmetic number, because the mean of its divisors is an integer number (919175140352).

Almost surely, 2^{8961957618159} is an apocalyptic number.

8961957618159 is a deficient number, since it is larger than the sum of its proper divisors (5744844627473).

8961957618159 is a wasteful number, since it uses less digits than its factorization.

8961957618159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32827683606.

The product of its digits is 293932800, while the sum is 75.

The spelling of 8961957618159 in words is "eight trillion, nine hundred sixty-one billion, nine hundred fifty-seven million, six hundred eighteen thousand, one hundred fifty-nine".