89197810681 has 8 divisors (see below), whose sum is σ = 102172568960. Its totient is φ = 76281105888.

The previous prime is 89197810633. The next prime is 89197810763. The reversal of 89197810681 is 18601879198.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 89197810681 - 2⁷ = 89197810553 is a prime.

It is a super-2 number, since 2×89197810681² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (89197810631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14510076 + ... + 14516221.

It is an arithmetic number, because the mean of its divisors is an integer number (12771571120).

Almost surely, 2^89197810681 is an apocalyptic number.

It is an amenable number.

89197810681 is a deficient number, since it is larger than the sum of its proper divisors (12974758279).

89197810681 is a wasteful number, since it uses less digits than its factorization.

89197810681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29026743.

The product of its (nonzero) digits is 1741824, while the sum is 58.

The spelling of 89197810681 in words is "eighty-nine billion, one hundred ninety-seven million, eight hundred ten thousand, six hundred eighty-one".