89718071806 has 64 divisors (see below), whose sum is σ = 153505497600. Its totient is φ = 38953756800.

The previous prime is 89718071803. The next prime is 89718071857. The reversal of 89718071806 is 60817081798.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89718071803) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27578476 + ... + 27581728.

It is an arithmetic number, because the mean of its divisors is an integer number (2398523400).

Almost surely, 2^89718071806 is an apocalyptic number.

89718071806 is a deficient number, since it is larger than the sum of its proper divisors (63787425794).

89718071806 is a wasteful number, since it uses less digits than its factorization.

89718071806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3745.

The product of its (nonzero) digits is 1354752, while the sum is 55.

The spelling of 89718071806 in words is "eighty-nine billion, seven hundred eighteen million, seventy-one thousand, eight hundred six".