9618231167999 has 4 divisors (see below), whose sum is σ = 9667054676664. Its totient is φ = 9569407659336.

The previous prime is 9618231167959. The next prime is 9618231168001. The reversal of 9618231167999 is 9997611328169.

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-9618231167999 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 (9618231167959) 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, 24411754037 + ... + 24411754430.

It is an arithmetic number, because the mean of its divisors is an integer number (2416763669166).

Almost surely, 2^{9618231167999} is an apocalyptic number.

9618231167999 is a deficient number, since it is larger than the sum of its proper divisors (48823508665).

9618231167999 is a wasteful number, since it uses less digits than its factorization.

9618231167999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48823508664.

The product of its digits is 79361856, while the sum is 71.

The spelling of 9618231167999 in words is "nine trillion, six hundred eighteen billion, two hundred thirty-one million, one hundred sixty-seven thousand, nine hundred ninety-nine".