89899448365 has 32 divisors (see below), whose sum is σ = 114815979360. Its totient is φ = 67339689984.

The previous prime is 89899448291. The next prime is 89899448413. The reversal of 89899448365 is 56384499898.

89899448365 = 212013² + 212014².

It can be written as a sum of positive squares in 16 ways, for example, as 1943310889 + 87956137476 = 44083^2 + 296574^2 .

It is a cyclic number.

It is not a de Polignac number, because 89899448365 - 2¹⁵ = 89899415597 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, 17255881 + ... + 17261089.

It is an arithmetic number, because the mean of its divisors is an integer number (3587999355).

Almost surely, 2^89899448365 is an apocalyptic number.

89899448365 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

89899448365 is the 212014-th centered square number.

It is an amenable number.

89899448365 is a deficient number, since it is larger than the sum of its proper divisors (24916530995).

89899448365 is a wasteful number, since it uses less digits than its factorization.

89899448365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6241.

The product of its digits is 537477120, while the sum is 73.

The spelling of 89899448365 in words is "eighty-nine billion, eight hundred ninety-nine million, four hundred forty-eight thousand, three hundred sixty-five".