89071863681 has 16 divisors (see below), whose sum is σ = 126004655808. Its totient is φ = 55774387200.

The previous prime is 89071863677. The next prime is 89071863691. The reversal of 89071863681 is 18636817098.

It is not a de Polignac number, because 89071863681 - 2² = 89071863677 is a prime.

It is a super-2 number, since 2×89071863681² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (89071863631) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1753480 + ... + 1803561.

It is an arithmetic number, because the mean of its divisors is an integer number (7875290988).

Almost surely, 2^89071863681 is an apocalyptic number.

It is an amenable number.

89071863681 is a deficient number, since it is larger than the sum of its proper divisors (36932792127).

89071863681 is a wasteful number, since it uses less digits than its factorization.

89071863681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3557552.

The product of its (nonzero) digits is 3483648, while the sum is 57.

The spelling of 89071863681 in words is "eighty-nine billion, seventy-one million, eight hundred sixty-three thousand, six hundred eighty-one".