89685393745 has 4 divisors (see below), whose sum is σ = 107622472500. Its totient is φ = 71748314992.

The previous prime is 89685393709. The next prime is 89685393761. The reversal of 89685393745 is 54739358698.

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 18054759424 + 71630634321 = 134368^2 + 267639^2 .

It is a cyclic number.

It is not a de Polignac number, because 89685393745 - 2⁹ = 89685393233 is a prime.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 8968539370 + ... + 8968539379.

It is an arithmetic number, because the mean of its divisors is an integer number (26905618125).

Almost surely, 2^89685393745 is an apocalyptic number.

It is an amenable number.

89685393745 is a deficient number, since it is larger than the sum of its proper divisors (17937078755).

89685393745 is a wasteful number, since it uses less digits than its factorization.

89685393745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17937078754.

The product of its digits is 195955200, while the sum is 67.

The spelling of 89685393745 in words is "eighty-nine billion, six hundred eighty-five million, three hundred ninety-three thousand, seven hundred forty-five".