6705638242 has 8 divisors (see below), whose sum is σ = 10330307676. Its totient is φ = 3262202352.

The previous prime is 6705638221. The next prime is 6705638243. The reversal of 6705638242 is 2428365076.

It can be written as a sum of positive squares in 2 ways, for example, as 6643717081 + 61921161 = 81509^2 + 7869^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (6705638243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45308293 + ... + 45308440.

Almost surely, 2^6705638242 is an apocalyptic number.

6705638242 is a deficient number, since it is larger than the sum of its proper divisors (3624669434).

6705638242 is a wasteful number, since it uses less digits than its factorization.

6705638242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90616772.

The product of its (nonzero) digits is 483840, while the sum is 43.

The square root of 6705638242 is about 81887.9615206045. The cubic root of 6705638242 is about 1885.7323003783.

The spelling of 6705638242 in words is "six billion, seven hundred five million, six hundred thirty-eight thousand, two hundred forty-two".