6738427018 has 4 divisors (see below), whose sum is σ = 10107640530. Its totient is φ = 3369213508.

The previous prime is 6738426977. The next prime is 6738427019. The reversal of 6738427018 is 8107248376.

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

It can be written as a sum of positive squares in only one way, i.e., 3919135609 + 2819291409 = 62603^2 + 53097^2 .

It is not an unprimeable number, because it can be changed into a prime (6738427019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1684606753 + ... + 1684606756.

Almost surely, 2^6738427018 is an apocalyptic number.

6738427018 is a deficient number, since it is larger than the sum of its proper divisors (3369213512).

6738427018 is a wasteful number, since it uses less digits than its factorization.

6738427018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3369213511.

The product of its (nonzero) digits is 451584, while the sum is 46.

The square root of 6738427018 is about 82087.9224855886. The cubic root of 6738427018 is about 1888.8008796777.

The spelling of 6738427018 in words is "six billion, seven hundred thirty-eight million, four hundred twenty-seven thousand, eighteen".