6478454896 has 80 divisors (see below), whose sum is σ = 13559132160. Its totient is φ = 2989831680.

The previous prime is 6478454839. The next prime is 6478454897. The reversal of 6478454896 is 6984548746.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6478454897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5737660 + ... + 5738788.

It is an arithmetic number, because the mean of its divisors is an integer number (169489152).

Almost surely, 2^6478454896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6478454896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6779566080).

6478454896 is an abundant number, since it is smaller than the sum of its proper divisors (7080677264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6478454896 is a wasteful number, since it uses less digits than its factorization.

6478454896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694 (or 1688 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 61.

The square root of 6478454896 is about 80488.8495134575. The cubic root of 6478454896 is about 1864.1913128621.

The spelling of 6478454896 in words is "six billion, four hundred seventy-eight million, four hundred fifty-four thousand, eight hundred ninety-six".