9891549134 has 8 divisors (see below), whose sum is σ = 14842911720. Its totient is φ = 4943911896.

The previous prime is 9891549097. The next prime is 9891549163. The reversal of 9891549134 is 4319451989.

9891549134 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×9891549134² (a number of 21 digits) contains 22 as substring.

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, 924689 + ... + 935324.

It is an arithmetic number, because the mean of its divisors is an integer number (1855363965).

Almost surely, 2^9891549134 is an apocalyptic number.

9891549134 is a deficient number, since it is larger than the sum of its proper divisors (4951362586).

9891549134 is a wasteful number, since it uses less digits than its factorization.

9891549134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1862674.

The product of its digits is 1399680, while the sum is 53.

The square root of 9891549134 is about 99456.2674445407. The cubic root of 9891549134 is about 2146.6180204771.

The spelling of 9891549134 in words is "nine billion, eight hundred ninety-one million, five hundred forty-nine thousand, one hundred thirty-four".