9858453949 has 4 divisors (see below), whose sum is σ = 9869182240. Its totient is φ = 9847725660.

The previous prime is 9858453929. The next prime is 9858453971. The reversal of 9858453949 is 9493548589.

9858453949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9858453949 - 2¹¹ = 9858451901 is a prime.

It is a super-2 number, since 2×9858453949² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9858453929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5362767 + ... + 5364604.

It is an arithmetic number, because the mean of its divisors is an integer number (2467295560).

Almost surely, 2^9858453949 is an apocalyptic number.

It is an amenable number.

9858453949 is a deficient number, since it is larger than the sum of its proper divisors (10728291).

9858453949 is a wasteful number, since it uses less digits than its factorization.

9858453949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10728290.

The product of its digits is 55987200, while the sum is 64.

The square root of 9858453949 is about 99289.7474515874. The cubic root of 9858453949 is about 2144.2212910796.

The spelling of 9858453949 in words is "nine billion, eight hundred fifty-eight million, four hundred fifty-three thousand, nine hundred forty-nine".