6772644378 has 24 divisors (see below), whose sum is σ = 14803926228. Its totient is φ = 2237569152.

The previous prime is 6772644367. The next prime is 6772644401. The reversal of 6772644378 is 8734462776.

6772644378 is a `hidden beast` number, since 6 + 7 + 7 + 264 + 4 + 378 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4878044649 + 1894599729 = 69843^2 + 43527^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1662825 + ... + 1666892.

Almost surely, 2^6772644378 is an apocalyptic number.

6772644378 is an abundant number, since it is smaller than the sum of its proper divisors (8031281850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6772644378 is a wasteful number, since it uses less digits than its factorization.

6772644378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3329838 (or 3329835 counting only the distinct ones).

The product of its digits is 9483264, while the sum is 54.

The square root of 6772644378 is about 82296.0775371463. The cubic root of 6772644378 is about 1891.9925588627.

The spelling of 6772644378 in words is "six billion, seven hundred seventy-two million, six hundred forty-four thousand, three hundred seventy-eight".