2679342409 has 6 divisors (see below), whose sum is σ = 2846222174. Its totient is φ = 2521733760.

The previous prime is 2679342401. The next prime is 2679342481. The reversal of 2679342409 is 9042439762.

It can be written as a sum of positive squares in 3 ways, for example, as 582160384 + 2097182025 = 24128^2 + 45795^2 .

It is not a de Polignac number, because 2679342409 - 2³ = 2679342401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2679342401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4635252 + ... + 4635829.

Almost surely, 2^2679342409 is an apocalyptic number.

It is an amenable number.

2679342409 is a deficient number, since it is larger than the sum of its proper divisors (166879765).

2679342409 is an equidigital number, since it uses as much as digits as its factorization.

2679342409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9271115 (or 9271098 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 46.

The square root of 2679342409 is about 51762.3647933515. The cubic root of 2679342409 is about 1388.9162936604.

The spelling of 2679342409 in words is "two billion, six hundred seventy-nine million, three hundred forty-two thousand, four hundred nine".