6744389505 has 64 divisors (see below), whose sum is σ = 12666931200. Its totient is φ = 2999969280.

The previous prime is 6744389479. The next prime is 6744389513. The reversal of 6744389505 is 5059834476.

It is not a de Polignac number, because 6744389505 - 2⁹ = 6744388993 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1801926 + ... + 1805664.

It is an arithmetic number, because the mean of its divisors is an integer number (197920800).

Almost surely, 2^6744389505 is an apocalyptic number.

It is an amenable number.

6744389505 is a deficient number, since it is larger than the sum of its proper divisors (5922541695).

6744389505 is a wasteful number, since it uses less digits than its factorization.

6744389505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4214.

The product of its (nonzero) digits is 3628800, while the sum is 51.

The square root of 6744389505 is about 82124.2321425290. The cubic root of 6744389505 is about 1889.3578163132.

The spelling of 6744389505 in words is "six billion, seven hundred forty-four million, three hundred eighty-nine thousand, five hundred five".