9521494834 has 8 divisors (see below), whose sum is σ = 14305543020. Its totient is φ = 4752980496.

The previous prime is 9521494823. The next prime is 9521494837. The reversal of 9521494834 is 4384941259.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6328679809 + 3192815025 = 79553^2 + 56505^2 .

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

It is not an unprimeable number, because it can be changed into a prime (9521494837) 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, 3881929 + ... + 3884380.

Almost surely, 2^9521494834 is an apocalyptic number.

9521494834 is a deficient number, since it is larger than the sum of its proper divisors (4784048186).

9521494834 is a wasteful number, since it uses less digits than its factorization.

9521494834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7766924.

The product of its digits is 1244160, while the sum is 49.

The square root of 9521494834 is about 97578.1473179318. The cubic root of 9521494834 is about 2119.5079279504.

The spelling of 9521494834 in words is "nine billion, five hundred twenty-one million, four hundred ninety-four thousand, eight hundred thirty-four".