6447614855 has 16 divisors (see below), whose sum is σ = 8447459328. Its totient is φ = 4685316000.

The previous prime is 6447614839. The next prime is 6447614903. The reversal of 6447614855 is 5584167446.

It is not a de Polignac number, because 6447614855 - 2⁴ = 6447614839 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20090 + ... + 115320.

It is an arithmetic number, because the mean of its divisors is an integer number (527966208).

Almost surely, 2^6447614855 is an apocalyptic number.

6447614855 is a deficient number, since it is larger than the sum of its proper divisors (1999844473).

6447614855 is a wasteful number, since it uses less digits than its factorization.

6447614855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96478.

The product of its digits is 3225600, while the sum is 50.

The square root of 6447614855 is about 80297.0413838517. The cubic root of 6447614855 is about 1861.2285073073.

The spelling of 6447614855 in words is "six billion, four hundred forty-seven million, six hundred fourteen thousand, eight hundred fifty-five".