6378952738 has 16 divisors (see below), whose sum is σ = 10146640824. Its totient is φ = 2997308160.

The previous prime is 6378952729. The next prime is 6378952757. The reversal of 6378952738 is 8372598736.

It can be written as a sum of positive squares in 4 ways, for example, as 5770985089 + 607967649 = 75967^2 + 24657^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119445 + ... + 164392.

Almost surely, 2^6378952738 is an apocalyptic number.

6378952738 is a deficient number, since it is larger than the sum of its proper divisors (3767688086).

6378952738 is a wasteful number, since it uses less digits than its factorization.

6378952738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284517.

The product of its digits is 15240960, while the sum is 58.

The square root of 6378952738 is about 79868.3462831177. The cubic root of 6378952738 is about 1854.5980329394.

The spelling of 6378952738 in words is "six billion, three hundred seventy-eight million, nine hundred fifty-two thousand, seven hundred thirty-eight".