6438080025 has 72 divisors (see below), whose sum is σ = 12471234776. Its totient is φ = 3156019200.

The previous prime is 6438079997. The next prime is 6438080113. The reversal of 6438080025 is 5200808346.

6438080025 is a `hidden beast` number, since 643 + 8 + 0 + 8 + 0 + 0 + 2 + 5 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 1155116169 + 5282963856 = 33987^2 + 72684^2 .

It is not a de Polignac number, because 6438080025 - 2²⁵ = 6404525593 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 700359 + ... + 709491.

Almost surely, 2^6438080025 is an apocalyptic number.

6438080025 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6438080025 is a deficient number, since it is larger than the sum of its proper divisors (6033154751).

6438080025 is a wasteful number, since it uses less digits than its factorization.

6438080025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9403 (or 9395 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 6438080025 is about 80237.6471801112. The cubic root of 6438080025 is about 1860.3105837583.

The spelling of 6438080025 in words is "six billion, four hundred thirty-eight million, eighty thousand, twenty-five".