6438527955 has 24 divisors (see below), whose sum is σ = 11240414640. Its totient is φ = 3409174080.

The previous prime is 6438527941. The next prime is 6438527957. The reversal of 6438527955 is 5597258346.

6438527955 is a `hidden beast` number, since 64 + 3 + 8 + 527 + 9 + 55 = 666.

6438527955 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6438527955 - 2¹⁰ = 6438526931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6438527957) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 508416 + ... + 520925.

It is an arithmetic number, because the mean of its divisors is an integer number (468350610).

Almost surely, 2^6438527955 is an apocalyptic number.

6438527955 is a deficient number, since it is larger than the sum of its proper divisors (4801886685).

6438527955 is a wasteful number, since it uses less digits than its factorization.

6438527955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029491 (or 1029488 counting only the distinct ones).

The product of its digits is 9072000, while the sum is 54.

The square root of 6438527955 is about 80240.4384023417. The cubic root of 6438527955 is about 1860.3537265168.

The spelling of 6438527955 in words is "six billion, four hundred thirty-eight million, five hundred twenty-seven thousand, nine hundred fifty-five".