89655647871 has 16 divisors (see below), whose sum is σ = 125869248000. Its totient is φ = 56608077888.

The previous prime is 89655647843. The next prime is 89655647911. The reversal of 89655647871 is 17874655698.

It is a happy number.

It is not a de Polignac number, because 89655647871 - 2¹⁷ = 89655516799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89655647831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31431 + ... + 424616.

It is an arithmetic number, because the mean of its divisors is an integer number (7866828000).

Almost surely, 2^89655647871 is an apocalyptic number.

89655647871 is a deficient number, since it is larger than the sum of its proper divisors (36213600129).

89655647871 is a wasteful number, since it uses less digits than its factorization.

89655647871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459518.

The product of its digits is 101606400, while the sum is 66.

The spelling of 89655647871 in words is "eighty-nine billion, six hundred fifty-five million, six hundred forty-seven thousand, eight hundred seventy-one".