9459481821 has 8 divisors (see below), whose sum is σ = 12633086784. Its totient is φ = 6296099040.

The previous prime is 9459481799. The next prime is 9459481861. The reversal of 9459481821 is 1281849549.

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

It is not a de Polignac number, because 9459481821 - 2⁵ = 9459481789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9459481861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2553385 + ... + 2557086.

It is an arithmetic number, because the mean of its divisors is an integer number (1579135848).

Almost surely, 2^9459481821 is an apocalyptic number.

It is an amenable number.

9459481821 is a deficient number, since it is larger than the sum of its proper divisors (3173604963).

9459481821 is a wasteful number, since it uses less digits than its factorization.

9459481821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5111091.

The product of its digits is 829440, while the sum is 51.

The square root of 9459481821 is about 97259.8674736913. The cubic root of 9459481821 is about 2114.8964861678.

The spelling of 9459481821 in words is "nine billion, four hundred fifty-nine million, four hundred eighty-one thousand, eight hundred twenty-one".