7438668347 has 4 divisors (see below), whose sum is σ = 8114910936. Its totient is φ = 6762425760.

The previous prime is 7438668331. The next prime is 7438668371.

7438668347 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7438668347 - 2⁴ = 7438668331 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7438668292 and 7438668301.

It is not an unprimeable number, because it can be changed into a prime (7438668547) 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 3 ways as a sum of consecutive naturals, for example, 338121278 + ... + 338121299.

It is an arithmetic number, because the mean of its divisors is an integer number (2028727734).

Almost surely, 2^7438668347 is an apocalyptic number.

7438668347 is a deficient number, since it is larger than the sum of its proper divisors (676242589).

7438668347 is a wasteful number, since it uses less digits than its factorization.

7438668347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676242588.

The product of its digits is 16257024, while the sum is 56.

The square root of 7438668347 is about 86247.7150248051. The cubic root of 7438668347 is about 1952.0835364785.

The spelling of 7438668347 in words is "seven billion, four hundred thirty-eight million, six hundred sixty-eight thousand, three hundred forty-seven".