9429779249 has 32 divisors (see below), whose sum is σ = 11530252800. Its totient is φ = 7600400640.

The previous prime is 9429779221. The next prime is 9429779279.

9429779249 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 9429779249 - 2¹² = 9429775153 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9429779191 and 9429779200.

It is not an unprimeable number, because it can be changed into a prime (9429779279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 628574 + ... + 643400.

It is an arithmetic number, because the mean of its divisors is an integer number (360320400).

Almost surely, 2^9429779249 is an apocalyptic number.

It is an amenable number.

9429779249 is a deficient number, since it is larger than the sum of its proper divisors (2100473551).

9429779249 is a wasteful number, since it uses less digits than its factorization.

9429779249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15053.

The product of its digits is 20575296, while the sum is 62.

The square root of 9429779249 is about 97107.0504597890. The cubic root of 9429779249 is about 2112.6805885743.

The spelling of 9429779249 in words is "nine billion, four hundred twenty-nine million, seven hundred seventy-nine thousand, two hundred forty-nine".