89681579261 has 8 divisors (see below), whose sum is σ = 94422451200. Its totient is φ = 84942786240.

The previous prime is 89681579243. The next prime is 89681579269. The reversal of 89681579261 is 16297518698.

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

It is a de Polignac number, because none of the positive numbers 2^k-89681579261 is a prime.

It is a super-2 number, since 2×89681579261² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89681579194 and 89681579203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89681579269) 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, 430781 + ... + 604098.

It is an arithmetic number, because the mean of its divisors is an integer number (11802806400).

Almost surely, 2^89681579261 is an apocalyptic number.

It is an amenable number.

89681579261 is a deficient number, since it is larger than the sum of its proper divisors (4740871939).

89681579261 is a wasteful number, since it uses less digits than its factorization.

89681579261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039459.

The product of its digits is 13063680, while the sum is 62.

The spelling of 89681579261 in words is "eighty-nine billion, six hundred eighty-one million, five hundred seventy-nine thousand, two hundred sixty-one".