899509616709 has 32 divisors (see below), whose sum is σ = 1321593280128. Its totient is φ = 539652960000.

The previous prime is 899509616597. The next prime is 899509616729. The reversal of 899509616709 is 907616905998.

It is not a de Polignac number, because 899509616709 - 2¹⁹ = 899509092421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (899509616729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18817579 + ... + 18865319.

It is an arithmetic number, because the mean of its divisors is an integer number (41299790004).

Almost surely, 2^899509616709 is an apocalyptic number.

It is an amenable number.

899509616709 is a deficient number, since it is larger than the sum of its proper divisors (422083663419).

899509616709 is a wasteful number, since it uses less digits than its factorization.

899509616709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53509.

The product of its (nonzero) digits is 66134880, while the sum is 69.

The spelling of 899509616709 in words is "eight hundred ninety-nine billion, five hundred nine million, six hundred sixteen thousand, seven hundred nine".