89281161441 has 14 divisors (see below), whose sum is σ = 133860507890. Its totient is φ = 59520773808.

The previous prime is 89281161419. The next prime is 89281161451. The reversal of 89281161441 is 14416118298.

89281161441 is a `hidden beast` number, since 8 + 9 + 28 + 1 + 1 + 614 + 4 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 86247355041 + 3033806400 = 293679^2 + 55080^2 .

It is not a de Polignac number, because 89281161441 - 2⁶ = 89281161377 is a prime.

It is a super-2 number, since 2×89281161441² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89281161401) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 61234636 + ... + 61236093.

Almost surely, 2^89281161441 is an apocalyptic number.

89281161441 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

89281161441 is a deficient number, since it is larger than the sum of its proper divisors (44579346449).

89281161441 is an equidigital number, since it uses as much as digits as its factorization.

89281161441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122470747 (or 122470732 counting only the distinct ones).

The product of its digits is 110592, while the sum is 45.

The spelling of 89281161441 in words is "eighty-nine billion, two hundred eighty-one million, one hundred sixty-one thousand, four hundred forty-one".