9481551849 has 32 divisors (see below), whose sum is σ = 17512826880. Its totient is φ = 4925480400.

The previous prime is 9481551847. The next prime is 9481551881.

9481551849 is a `hidden beast` number, since 9 + 4 + 8 + 1 + 551 + 84 + 9 = 666.

9481551849 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 9481551849 - 2¹ = 9481551847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9481551795 and 9481551804.

It is not an unprimeable number, because it can be changed into a prime (9481551847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2278237 + ... + 2282394.

It is an arithmetic number, because the mean of its divisors is an integer number (547275840).

Almost surely, 2^9481551849 is an apocalyptic number.

9481551849 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

It is an amenable number.

9481551849 is a deficient number, since it is larger than the sum of its proper divisors (8031275031).

9481551849 is a wasteful number, since it uses less digits than its factorization.

9481551849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4560658 (or 4560652 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 54.

The square root of 9481551849 is about 97373.2604414580. The cubic root of 9481551849 is about 2116.5399719512.

The spelling of 9481551849 in words is "nine billion, four hundred eighty-one million, five hundred fifty-one thousand, eight hundred forty-nine".