89718602543 has 16 divisors (see below), whose sum is σ = 91432368192. Its totient is φ = 88013088000.

The previous prime is 89718602537. The next prime is 89718602549. The reversal of 89718602543 is 34520681798.

It is an interprime number because it is at equal distance from previous prime (89718602537) and next prime (89718602549).

It is a cyclic number.

It is not a de Polignac number, because 89718602543 - 2²⁴ = 89701825327 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 (89718602549) 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, 64965713 + ... + 64967093.

It is an arithmetic number, because the mean of its divisors is an integer number (5714523012).

It is a 2-persistent number, because it is pandigital, and so is 2⋅89718602543 = 179437205086, but 3⋅89718602543 = 269155807629 is not.

Almost surely, 2^89718602543 is an apocalyptic number.

89718602543 is a deficient number, since it is larger than the sum of its proper divisors (1713765649).

89718602543 is a wasteful number, since it uses less digits than its factorization.

With its successor (89718602544) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (3506).

89718602543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3506.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 89718602543 in words is "eighty-nine billion, seven hundred eighteen million, six hundred two thousand, five hundred forty-three".