6478171776 has 256 divisors, whose sum is σ = 20542636800. Its totient is φ = 2002452480.

The previous prime is 6478171753. The next prime is 6478171807. The reversal of 6478171776 is 6771718746.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4170616 + ... + 4172168.

It is an arithmetic number, because the mean of its divisors is an integer number (80244675).

Almost surely, 2^6478171776 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 6478171776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10271318400).

6478171776 is an abundant number, since it is smaller than the sum of its proper divisors (14064465024).

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

6478171776 is a wasteful number, since it uses less digits than its factorization.

6478171776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664 (or 1646 counting only the distinct ones).

The product of its digits is 2765952, while the sum is 54.

The square root of 6478171776 is about 80487.0907413108. The cubic root of 6478171776 is about 1864.1641563080.

The spelling of 6478171776 in words is "six billion, four hundred seventy-eight million, one hundred seventy-one thousand, seven hundred seventy-six".