6738689123 has 2 divisors, whose sum is σ = 6738689124. Its totient is φ = 6738689122.

The previous prime is 6738689119. The next prime is 6738689161. The reversal of 6738689123 is 3219868376.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6738689123 - 2² = 6738689119 is a prime.

It is not a weakly prime, because it can be changed into another prime (6738689323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3369344561 + 3369344562.

It is an arithmetic number, because the mean of its divisors is an integer number (3369344562).

Almost surely, 2^6738689123 is an apocalyptic number.

6738689123 is a deficient number, since it is larger than the sum of its proper divisors (1).

6738689123 is an equidigital number, since it uses as much as digits as its factorization.

6738689123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2612736, while the sum is 53.

The square root of 6738689123 is about 82089.5189594871. The cubic root of 6738689123 is about 1888.8253689606.

The spelling of 6738689123 in words is "six billion, seven hundred thirty-eight million, six hundred eighty-nine thousand, one hundred twenty-three".