6744736778 has 16 divisors (see below), whose sum is σ = 10952395776. Its totient is φ = 3096654960.

The previous prime is 6744736777. The next prime is 6744736783. The reversal of 6744736778 is 8776374476.

It is not an unprimeable number, because it can be changed into a prime (6744736777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 674126 + ... + 684057.

It is an arithmetic number, because the mean of its divisors is an integer number (684524736).

Almost surely, 2^6744736778 is an apocalyptic number.

6744736778 is a deficient number, since it is larger than the sum of its proper divisors (4207658998).

6744736778 is a wasteful number, since it uses less digits than its factorization.

6744736778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358389.

The product of its digits is 33191424, while the sum is 59.

The square root of 6744736778 is about 82126.3464303630. The cubic root of 6744736778 is about 1889.3902438441.

The spelling of 6744736778 in words is "six billion, seven hundred forty-four million, seven hundred thirty-six thousand, seven hundred seventy-eight".