899109789796 has 27 divisors (see below), whose sum is σ = 1660679993721. Its totient is φ = 425877043104.

The previous prime is 899109789791. The next prime is 899109789803. The reversal of 899109789796 is 697987901998.

The square root of 899109789796 is 948214.

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

It can be written as a sum of positive squares in only one way, i.e., 652363136100 + 246746653696 = 807690^2 + 496736^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (899109789791) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 36019656 + ... + 36044608.

Almost surely, 2^899109789796 is an apocalyptic number.

899109789796 is the 948214-th square number.

It is an amenable number.

899109789796 is a deficient number, since it is larger than the sum of its proper divisors (761570203925).

899109789796 is an frugal number, since it uses more digits than its factorization.

899109789796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49948 (or 24974 counting only the distinct ones).

The product of its (nonzero) digits is 1111065984, while the sum is 82.

The spelling of 899109789796 in words is "eight hundred ninety-nine billion, one hundred nine million, seven hundred eighty-nine thousand, seven hundred ninety-six".