89129832978549 has 8 divisors (see below), whose sum is σ = 129643393423392. Its totient is φ = 54018080593040.

The previous prime is 89129832978521. The next prime is 89129832978559. The reversal of 89129832978549 is 94587923892198.

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 89129832978549 - 2⁹ = 89129832978037 is a prime.

It is a super-5 number, since 5×89129832978549⁵ (a number of 71 digits) contains 55555 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89129832978559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1350452014794 + ... + 1350452014859.

It is an arithmetic number, because the mean of its divisors is an integer number (16205424177924).

Almost surely, 2^{89129832978549} is an apocalyptic number.

It is an amenable number.

89129832978549 is a deficient number, since it is larger than the sum of its proper divisors (40513560444843).

89129832978549 is a wasteful number, since it uses less digits than its factorization.

89129832978549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2700904029667.

The product of its digits is 5643509760, while the sum is 84.

The spelling of 89129832978549 in words is "eighty-nine trillion, one hundred twenty-nine billion, eight hundred thirty-two million, nine hundred seventy-eight thousand, five hundred forty-nine".