89329872681 has 64 divisors (see below), whose sum is σ = 160406300160. Its totient is φ = 47964026880.

The previous prime is 89329872649. The next prime is 89329872733. The reversal of 89329872681 is 18627892398.

89329872681 is a `hidden beast` number, since 89 + 3 + 298 + 7 + 268 + 1 = 666.

It is not a de Polignac number, because 89329872681 - 2⁵ = 89329872649 is a prime.

It is a super-2 number, since 2×89329872681² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (89329872581) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1959891 + ... + 2004951.

It is an arithmetic number, because the mean of its divisors is an integer number (2506348440).

Almost surely, 2^89329872681 is an apocalyptic number.

It is an amenable number.

89329872681 is a deficient number, since it is larger than the sum of its proper divisors (71076427479).

89329872681 is a wasteful number, since it uses less digits than its factorization.

89329872681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45711 (or 45705 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 63.

The spelling of 89329872681 in words is "eighty-nine billion, three hundred twenty-nine million, eight hundred seventy-two thousand, six hundred eighty-one".