6776454385 has 8 divisors (see below), whose sum is σ = 8133788736. Its totient is φ = 5419801200.

The previous prime is 6776454379. The next prime is 6776454397. The reversal of 6776454385 is 5834546776.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6776454385 - 2¹¹ = 6776452337 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 148141 + ... + 188410.

It is an arithmetic number, because the mean of its divisors is an integer number (1016723592).

Almost surely, 2^6776454385 is an apocalyptic number.

It is an amenable number.

6776454385 is a deficient number, since it is larger than the sum of its proper divisors (1357334351).

6776454385 is a wasteful number, since it uses less digits than its factorization.

6776454385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340583.

The product of its digits is 16934400, while the sum is 55.

The square root of 6776454385 is about 82319.2224513813. Note that the first 3 decimals coincide. The cubic root of 6776454385 is about 1892.3472776982.

The spelling of 6776454385 in words is "six billion, seven hundred seventy-six million, four hundred fifty-four thousand, three hundred eighty-five".