6379438320025 has 27 divisors (see below), whose sum is σ = 8193155925981. Its totient is φ = 4927283266080.

The previous prime is 6379438320023. The next prime is 6379438320097. The reversal of 6379438320025 is 5200238349736.

The square root of 6379438320025 is 2525755.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 87688831129 + 6291749488896 = 296123^2 + 2508336^2 .

It is not a de Polignac number, because 6379438320025 - 2¹ = 6379438320023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6379438320023) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 366225766 + ... + 366243184.

Almost surely, 2^{6379438320025} is an apocalyptic number.

6379438320025 is the 2525755-th square number.

6379438320025 is the 1262878-th centered octagonal number.

It is an amenable number.

6379438320025 is a deficient number, since it is larger than the sum of its proper divisors (1813717605956).

6379438320025 is an frugal number, since it uses more digits than its factorization.

6379438320025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34906 (or 17453 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 52.

The spelling of 6379438320025 in words is "six trillion, three hundred seventy-nine billion, four hundred thirty-eight million, three hundred twenty thousand, twenty-five".