9578734512 has 20 divisors (see below), whose sum is σ = 24745064280. Its totient is φ = 3192911488.

The previous prime is 9578734489. The next prime is 9578734519. The reversal of 9578734512 is 2154378759.

It is not an unprimeable number, because it can be changed into a prime (9578734519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99778437 + ... + 99778532.

It is an arithmetic number, because the mean of its divisors is an integer number (1237253214).

Almost surely, 2^9578734512 is an apocalyptic number.

It is an amenable number.

9578734512 is an abundant number, since it is smaller than the sum of its proper divisors (15166329768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9578734512 is a wasteful number, since it uses less digits than its factorization.

9578734512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199556980 (or 199556974 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 51.

The square root of 9578734512 is about 97871.0095585000. The cubic root of 9578734512 is about 2123.7466758926.

The spelling of 9578734512 in words is "nine billion, five hundred seventy-eight million, seven hundred thirty-four thousand, five hundred twelve".