89909231147 has 2 divisors, whose sum is σ = 89909231148. Its totient is φ = 89909231146.

The previous prime is 89909231123. The next prime is 89909231173. The reversal of 89909231147 is 74113290998.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89909231147 - 2¹⁰ = 89909230123 is a prime.

It is not a weakly prime, because it can be changed into another prime (89909231647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44954615573 + 44954615574.

It is an arithmetic number, because the mean of its divisors is an integer number (44954615574).

Almost surely, 2^89909231147 is an apocalyptic number.

89909231147 is a deficient number, since it is larger than the sum of its proper divisors (1).

89909231147 is an equidigital number, since it uses as much as digits as its factorization.

89909231147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 53.

The spelling of 89909231147 in words is "eighty-nine billion, nine hundred nine million, two hundred thirty-one thousand, one hundred forty-seven".