6478196544 has 84 divisors (see below), whose sum is σ = 18582493696. Its totient is φ = 2157781248.

The previous prime is 6478196533. The next prime is 6478196561. The reversal of 6478196544 is 4456918746.

6478196544 is a `hidden beast` number, since 6 + 4 + 7 + 8 + 1 + 96 + 544 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 954507 + ... + 961269.

Almost surely, 2^6478196544 is an apocalyptic number.

6478196544 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6478196544 is an abundant number, since it is smaller than the sum of its proper divisors (12104297152).

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

6478196544 is a wasteful number, since it uses less digits than its factorization.

6478196544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8444 (or 8431 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 6478196544 is about 80487.2446043471. The cubic root of 6478196544 is about 1864.1665320584.

The spelling of 6478196544 in words is "six billion, four hundred seventy-eight million, one hundred ninety-six thousand, five hundred forty-four".