895849615978009 has 27 divisors (see below), whose sum is σ = 1145463553796373. Its totient is φ = 698062839982200.

The previous prime is 895849615978007. The next prime is 895849615978013. The reversal of 895849615978009 is 900879516948598.

The square root of 895849615978009 is 29930747.

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

It is not a de Polignac number, because 895849615978009 - 2¹ = 895849615978007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (895849615978007) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2304473164 + ... + 2304861874.

Almost surely, 2^{895849615978009} is an apocalyptic number.

895849615978009 is the 29930747-th square number.

895849615978009 is the 14965374-th centered octagonal number.

It is an amenable number.

895849615978009 is a deficient number, since it is larger than the sum of its proper divisors (249613937818364).

895849615978009 is an frugal number, since it uses more digits than its factorization.

895849615978009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777458 (or 388729 counting only the distinct ones).

The product of its (nonzero) digits is 14108774400, while the sum is 88.

The spelling of 895849615978009 in words is "eight hundred ninety-five trillion, eight hundred forty-nine billion, six hundred fifteen million, nine hundred seventy-eight thousand, nine".