89643769205 has 4 divisors (see below), whose sum is σ = 107572523052. Its totient is φ = 71715015360.

The previous prime is 89643769199. The next prime is 89643769213. The reversal of 89643769205 is 50296734698.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32848300081 + 56795469124 = 181241^2 + 238318^2 .

It is not a de Polignac number, because 89643769205 - 2⁶ = 89643769141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8964376916 + ... + 8964376925.

It is an arithmetic number, because the mean of its divisors is an integer number (26893130763).

Almost surely, 2^89643769205 is an apocalyptic number.

It is an amenable number.

89643769205 is a deficient number, since it is larger than the sum of its proper divisors (17928753847).

89643769205 is a wasteful number, since it uses less digits than its factorization.

89643769205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17928753846.

The product of its (nonzero) digits is 19595520, while the sum is 59.

The spelling of 89643769205 in words is "eighty-nine billion, six hundred forty-three million, seven hundred sixty-nine thousand, two hundred five".