89631795303649 has 3 divisors (see below), whose sum is σ = 89631804771057. Its totient is φ = 89631785836242.

The previous prime is 89631795303647. The next prime is 89631795303653. The reversal of 89631795303649 is 94630359713698.

The square root of 89631795303649 is 9467407.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 89631795303649 - 2¹ = 89631795303647 is a prime.

It is a super-2 number, since 2×89631795303649² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89631795303643) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4733704 + ... + 14201110.

It is an arithmetic number, because the mean of its divisors is an integer number (29877268257019).

Almost surely, 2^{89631795303649} is an apocalyptic number.

89631795303649 is the 9467407-th square number.

89631795303649 is the 4733704-th centered octagonal number.

It is an amenable number.

89631795303649 is a deficient number, since it is larger than the sum of its proper divisors (9467408).

89631795303649 is an frugal number, since it uses more digits than its factorization.

89631795303649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18934814 (or 9467407 counting only the distinct ones).

The product of its (nonzero) digits is 793618560, while the sum is 73.

The spelling of 89631795303649 in words is "eighty-nine trillion, six hundred thirty-one billion, seven hundred ninety-five million, three hundred three thousand, six hundred forty-nine".