6746549639 has 2 divisors, whose sum is σ = 6746549640. Its totient is φ = 6746549638.

The previous prime is 6746549611. The next prime is 6746549669. The reversal of 6746549639 is 9369456476.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6746549639 - 2¹² = 6746545543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6746549669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3373274819 + 3373274820.

It is an arithmetic number, because the mean of its divisors is an integer number (3373274820).

Almost surely, 2^6746549639 is an apocalyptic number.

6746549639 is a deficient number, since it is larger than the sum of its proper divisors (1).

6746549639 is an equidigital number, since it uses as much as digits as its factorization.

6746549639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29393280, while the sum is 59.

The square root of 6746549639 is about 82137.3827133541. The cubic root of 6746549639 is about 1889.5595064443.

The spelling of 6746549639 in words is "six billion, seven hundred forty-six million, five hundred forty-nine thousand, six hundred thirty-nine".