89818681898 has 16 divisors (see below), whose sum is σ = 147125578176. Its totient is φ = 40785131040.

The previous prime is 89818681879. The next prime is 89818681907.

89818681898 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×89818681898² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2055011 + ... + 2098262.

It is an arithmetic number, because the mean of its divisors is an integer number (9195348636).

Almost surely, 2^89818681898 is an apocalyptic number.

89818681898 is a deficient number, since it is larger than the sum of its proper divisors (57306896278).

89818681898 is a wasteful number, since it uses less digits than its factorization.

89818681898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4154269.

The product of its digits is 127401984, while the sum is 74.

The spelling of 89818681898 in words is "eighty-nine billion, eight hundred eighteen million, six hundred eighty-one thousand, eight hundred ninety-eight".