9895216261 has 8 divisors (see below), whose sum is σ = 11539611200. Its totient is φ = 8481613644.

The previous prime is 9895216189. The next prime is 9895216277. The reversal of 9895216261 is 1626125989.

It is not a de Polignac number, because 9895216261 - 2⁹ = 9895215749 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9895216361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14424171 + ... + 14424856.

It is an arithmetic number, because the mean of its divisors is an integer number (1442451400).

Almost surely, 2^9895216261 is an apocalyptic number.

It is an amenable number.

9895216261 is a deficient number, since it is larger than the sum of its proper divisors (1644394939).

9895216261 is an equidigital number, since it uses as much as digits as its factorization.

9895216261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28849048 (or 28849034 counting only the distinct ones).

The product of its digits is 466560, while the sum is 49.

The square root of 9895216261 is about 99474.7016130232. The cubic root of 9895216261 is about 2146.8832619878.

The spelling of 9895216261 in words is "nine billion, eight hundred ninety-five million, two hundred sixteen thousand, two hundred sixty-one".