9749449479 has 32 divisors (see below), whose sum is σ = 16303988736. Its totient is φ = 5034301920.

The previous prime is 9749449453. The next prime is 9749449483.

9749449479 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 9749449479 - 2⁷ = 9749449351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9749449079) 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, 87787 + ... + 164940.

It is an arithmetic number, because the mean of its divisors is an integer number (509499648).

Almost surely, 2^9749449479 is an apocalyptic number.

9749449479 is a deficient number, since it is larger than the sum of its proper divisors (6554539257).

9749449479 is a wasteful number, since it uses less digits than its factorization.

9749449479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252915.

The product of its digits is 82301184, while the sum is 66.

The square root of 9749449479 is about 98739.3005798603. The cubic root of 9749449479 is about 2136.2891317446.

The spelling of 9749449479 in words is "nine billion, seven hundred forty-nine million, four hundred forty-nine thousand, four hundred seventy-nine".