89164857845 has 32 divisors (see below), whose sum is σ = 131457945600. Its totient is φ = 56691199296.

The previous prime is 89164857833. The next prime is 89164857869. The reversal of 89164857845 is 54875846198.

It is a cyclic number.

It is not a de Polignac number, because 89164857845 - 2¹⁰ = 89164856821 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1395155 + ... + 1457664.

It is an arithmetic number, because the mean of its divisors is an integer number (4108060800).

Almost surely, 2^89164857845 is an apocalyptic number.

It is an amenable number.

89164857845 is a deficient number, since it is larger than the sum of its proper divisors (42293087755).

89164857845 is a wasteful number, since it uses less digits than its factorization.

89164857845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2852897.

The product of its digits is 77414400, while the sum is 65.

The spelling of 89164857845 in words is "eighty-nine billion, one hundred sixty-four million, eight hundred fifty-seven thousand, eight hundred forty-five".