89938636159 has 4 divisors (see below), whose sum is σ = 90019155304. Its totient is φ = 89858117016.

The previous prime is 89938636133. The next prime is 89938636163. The reversal of 89938636159 is 95163683998.

It is a happy number.

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-89938636159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89938636094 and 89938636103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89938636259) 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, 40257897 + ... + 40260130.

It is an arithmetic number, because the mean of its divisors is an integer number (22504788826).

Almost surely, 2^89938636159 is an apocalyptic number.

89938636159 is a deficient number, since it is larger than the sum of its proper divisors (80519145).

89938636159 is a wasteful number, since it uses less digits than its factorization.

89938636159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80519144.

The product of its digits is 75582720, while the sum is 67.

The spelling of 89938636159 in words is "eighty-nine billion, nine hundred thirty-eight million, six hundred thirty-six thousand, one hundred fifty-nine".