6478630380 has 36 divisors (see below), whose sum is σ = 19651846032. Its totient is φ = 1727634720.

The previous prime is 6478630373. The next prime is 6478630391. The reversal of 6478630380 is 830368746.

6478630380 is a `hidden beast` number, since 6 + 4 + 7 + 8 + 630 + 3 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17996016 + ... + 17996375.

It is an arithmetic number, because the mean of its divisors is an integer number (545884612).

Almost surely, 2^6478630380 is an apocalyptic number.

6478630380 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6478630380 is an abundant number, since it is smaller than the sum of its proper divisors (13173215652).

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

6478630380 is a wasteful number, since it uses less digits than its factorization.

6478630380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35992406 (or 35992401 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 6478630380 is about 80489.9396198059. The cubic root of 6478630380 is about 1864.2081446942.

The spelling of 6478630380 in words is "six billion, four hundred seventy-eight million, six hundred thirty thousand, three hundred eighty".