6748206638 has 4 divisors (see below), whose sum is σ = 10122309960. Its totient is φ = 3374103318.

The previous prime is 6748206629. The next prime is 6748206691. The reversal of 6748206638 is 8366028476.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1687051658 + ... + 1687051661.

It is an arithmetic number, because the mean of its divisors is an integer number (2530577490).

Almost surely, 2^6748206638 is an apocalyptic number.

6748206638 is a deficient number, since it is larger than the sum of its proper divisors (3374103322).

6748206638 is a wasteful number, since it uses less digits than its factorization.

6748206638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3374103321.

The product of its (nonzero) digits is 2322432, while the sum is 50.

The square root of 6748206638 is about 82147.4688471897. The cubic root of 6748206638 is about 1889.7141900522.

The spelling of 6748206638 in words is "six billion, seven hundred forty-eight million, two hundred six thousand, six hundred thirty-eight".