9509468551 has 16 divisors (see below), whose sum is σ = 11010504960. Its totient is φ = 8116958080.

The previous prime is 9509468539. The next prime is 9509468569. The reversal of 9509468551 is 1558649059.

It is a de Polignac number, because none of the positive numbers 2^k-9509468551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9509468051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17670 + ... + 139036.

It is an arithmetic number, because the mean of its divisors is an integer number (688156560).

Almost surely, 2^9509468551 is an apocalyptic number.

9509468551 is a deficient number, since it is larger than the sum of its proper divisors (1501036409).

9509468551 is a wasteful number, since it uses less digits than its factorization.

9509468551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121814.

The product of its (nonzero) digits is 1944000, while the sum is 52.

The square root of 9509468551 is about 97516.5039929139. The cubic root of 9509468551 is about 2118.6151920262.

The spelling of 9509468551 in words is "nine billion, five hundred nine million, four hundred sixty-eight thousand, five hundred fifty-one".