6742746149 has 2 divisors, whose sum is σ = 6742746150. Its totient is φ = 6742746148.

The previous prime is 6742746083. The next prime is 6742746151. The reversal of 6742746149 is 9416472476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5201005924 + 1541740225 = 72118^2 + 39265^2 .

It is a cyclic number.

It is not a de Polignac number, because 6742746149 - 2²⁸ = 6474310693 is a prime.

Together with 6742746151, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 6742746097 and 6742746106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6742746349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3371373074 + 3371373075.

It is an arithmetic number, because the mean of its divisors is an integer number (3371373075).

Almost surely, 2^6742746149 is an apocalyptic number.

It is an amenable number.

6742746149 is a deficient number, since it is larger than the sum of its proper divisors (1).

6742746149 is an equidigital number, since it uses as much as digits as its factorization.

6742746149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2032128, while the sum is 50.

The square root of 6742746149 is about 82114.2262278590. The cubic root of 6742746149 is about 1889.2043485201.

The spelling of 6742746149 in words is "six billion, seven hundred forty-two million, seven hundred forty-six thousand, one hundred forty-nine".