6444955485 has 32 divisors (see below), whose sum is σ = 11602752000. Its totient is φ = 3393793728.

The previous prime is 6444955481. The next prime is 6444955507. The reversal of 6444955485 is 5845594446.

It is a happy number.

6444955485 is a `hidden beast` number, since 6 + 4 + 4 + 4 + 9 + 554 + 85 = 666.

It is not a de Polignac number, because 6444955485 - 2² = 6444955481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6444955481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 291490 + ... + 312819.

It is an arithmetic number, because the mean of its divisors is an integer number (362586000).

Almost surely, 2^6444955485 is an apocalyptic number.

It is an amenable number.

6444955485 is a deficient number, since it is larger than the sum of its proper divisors (5157796515).

6444955485 is a wasteful number, since it uses less digits than its factorization.

6444955485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604402 (or 604396 counting only the distinct ones).

The product of its digits is 13824000, while the sum is 54.

The square root of 6444955485 is about 80280.4800994613. The cubic root of 6444955485 is about 1860.9725792866.

The spelling of 6444955485 in words is "six billion, four hundred forty-four million, nine hundred fifty-five thousand, four hundred eighty-five".