9534679640 has 16 divisors (see below), whose sum is σ = 21453029280. Its totient is φ = 3813871840.

The previous prime is 9534679639. The next prime is 9534679643. The reversal of 9534679640 is 469764359.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9534679643) 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, 119183456 + ... + 119183535.

It is an arithmetic number, because the mean of its divisors is an integer number (1340814330).

Almost surely, 2^9534679640 is an apocalyptic number.

It is an amenable number.

9534679640 is an abundant number, since it is smaller than the sum of its proper divisors (11918349640).

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

9534679640 is a wasteful number, since it uses less digits than its factorization.

9534679640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238367002 (or 238366998 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 53.

The square root of 9534679640 is about 97645.6841852214. The cubic root of 9534679640 is about 2120.4858000263.

The spelling of 9534679640 in words is "nine billion, five hundred thirty-four million, six hundred seventy-nine thousand, six hundred forty".