89228181887 has 32 divisors (see below), whose sum is σ = 100822579200. Its totient is φ = 78350469120.

The previous prime is 89228181839. The next prime is 89228181901. The reversal of 89228181887 is 78818182298.

It is a cyclic number.

It is not a de Polignac number, because 89228181887 - 2⁸ = 89228181631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89228181817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49269212 + ... + 49271022.

It is an arithmetic number, because the mean of its divisors is an integer number (3150705600).

Almost surely, 2^89228181887 is an apocalyptic number.

89228181887 is a deficient number, since it is larger than the sum of its proper divisors (11594397313).

89228181887 is a wasteful number, since it uses less digits than its factorization.

89228181887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2663.

The product of its digits is 8257536, while the sum is 62.

The spelling of 89228181887 in words is "eighty-nine billion, two hundred twenty-eight million, one hundred eighty-one thousand, eight hundred eighty-seven".