9509478478 has 8 divisors (see below), whose sum is σ = 14884401168. Its totient is φ = 4548011424.

The previous prime is 9509478457. The next prime is 9509478481. The reversal of 9509478478 is 8748749059.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103363851 + ... + 103363942.

It is an arithmetic number, because the mean of its divisors is an integer number (1860550146).

Almost surely, 2^9509478478 is an apocalyptic number.

9509478478 is a deficient number, since it is larger than the sum of its proper divisors (5374922690).

9509478478 is a wasteful number, since it uses less digits than its factorization.

9509478478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206727818.

The product of its (nonzero) digits is 20321280, while the sum is 61.

The square root of 9509478478 is about 97516.5548919772. The cubic root of 9509478478 is about 2118.6159292383.

The spelling of 9509478478 in words is "nine billion, five hundred nine million, four hundred seventy-eight thousand, four hundred seventy-eight".