79823343249 has 12 divisors (see below), whose sum is σ = 124169645236. Its totient is φ = 49122057312.

The previous prime is 79823343211. The next prime is 79823343269. The reversal of 79823343249 is 94234332897.

It can be written as a sum of positive squares in 2 ways, for example, as 48579245649 + 31244097600 = 220407^2 + 176760^2 .

It is not a de Polignac number, because 79823343249 - 2¹⁷ = 79823212177 is a prime.

It is a super-2 number, since 2×79823343249² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 79823343195 and 79823343204.

It is not an unprimeable number, because it can be changed into a prime (79823343269) 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 11 ways as a sum of consecutive naturals, for example, 341125282 + ... + 341125515.

Almost surely, 2^79823343249 is an apocalyptic number.

It is an amenable number.

79823343249 is a deficient number, since it is larger than the sum of its proper divisors (44346301987).

79823343249 is a wasteful number, since it uses less digits than its factorization.

79823343249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682250816 (or 682250813 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 54.

It can be divided in two parts, 79 and 823343249, that added together give a palindrome (823343328).

The spelling of 79823343249 in words is "seventy-nine billion, eight hundred twenty-three million, three hundred forty-three thousand, two hundred forty-nine".