89446818642729 has 16 divisors (see below), whose sum is σ = 120182037185664. Its totient is φ = 59172729449600.

The previous prime is 89446818642703. The next prime is 89446818642737. The reversal of 89446818642729 is 92724681864498.

It is a cyclic number.

It is not a de Polignac number, because 89446818642729 - 2²³ = 89446810254121 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (89446818642529) 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, 165127437 + ... + 165668234.

It is an arithmetic number, because the mean of its divisors is an integer number (7511377324104).

Almost surely, 2^{89446818642729} is an apocalyptic number.

It is an amenable number.

89446818642729 is a deficient number, since it is larger than the sum of its proper divisors (30735218542935).

89446818642729 is a wasteful number, since it uses less digits than its factorization.

89446818642729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330796368.

The product of its digits is 2675441664, while the sum is 78.

The spelling of 89446818642729 in words is "eighty-nine trillion, four hundred forty-six billion, eight hundred eighteen million, six hundred forty-two thousand, seven hundred twenty-nine".