6216455894 has 16 divisors (see below), whose sum is σ = 10205528256. Its totient is φ = 2816454600.

The previous prime is 6216455887. The next prime is 6216455899. The reversal of 6216455894 is 4985546126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6216455899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453452 + ... + 466959.

It is an arithmetic number, because the mean of its divisors is an integer number (637845516).

Almost surely, 2^6216455894 is an apocalyptic number.

6216455894 is a deficient number, since it is larger than the sum of its proper divisors (3989072362).

6216455894 is a wasteful number, since it uses less digits than its factorization.

6216455894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920731.

The product of its digits is 2073600, while the sum is 50.

The square root of 6216455894 is about 78844.5045263143. The cubic root of 6216455894 is about 1838.7144349938.

The spelling of 6216455894 in words is "six billion, two hundred sixteen million, four hundred fifty-five thousand, eight hundred ninety-four".