89418928221 has 24 divisors (see below), whose sum is σ = 147725794944. Its totient is φ = 51057208800.

The previous prime is 89418928171. The next prime is 89418928253. The reversal of 89418928221 is 12282981498.

It is not a de Polignac number, because 89418928221 - 2²¹ = 89416831069 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89418928271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 463521 + ... + 627446.

It is an arithmetic number, because the mean of its divisors is an integer number (6155241456).

Almost surely, 2^89418928221 is an apocalyptic number.

It is an amenable number.

89418928221 is a deficient number, since it is larger than the sum of its proper divisors (58306866723).

89418928221 is a wasteful number, since it uses less digits than its factorization.

89418928221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092281 (or 1092278 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 54.

The spelling of 89418928221 in words is "eighty-nine billion, four hundred eighteen million, nine hundred twenty-eight thousand, two hundred twenty-one".