9641821834 has 16 divisors (see below), whose sum is σ = 14548708800. Its totient is φ = 4792296960.

The previous prime is 9641821807. The next prime is 9641821873. The reversal of 9641821834 is 4381281469.

9641821834 is an esthetic number in base 14, because in such base its adjacent digits differ by 1.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 448389 + ... + 469399.

It is an arithmetic number, because the mean of its divisors is an integer number (909294300).

Almost surely, 2^9641821834 is an apocalyptic number.

9641821834 is a deficient number, since it is larger than the sum of its proper divisors (4906886966).

9641821834 is a wasteful number, since it uses less digits than its factorization.

9641821834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22365.

The product of its digits is 331776, while the sum is 46.

The square root of 9641821834 is about 98192.7789300211. The cubic root of 9641821834 is about 2128.3989403947.

The spelling of 9641821834 in words is "nine billion, six hundred forty-one million, eight hundred twenty-one thousand, eight hundred thirty-four".