6391471104 has 352 divisors, whose sum is σ = 20830272000. Its totient is φ = 1930604544.

The previous prime is 6391471103. The next prime is 6391471111. The reversal of 6391471104 is 4011741936.

6391471104 is a `hidden beast` number, since 639 + 1 + 4 + 7 + 1 + 10 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6391471103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 277890037 + ... + 277890059.

Almost surely, 2^6391471104 is an apocalyptic number.

6391471104 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6391471104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10415136000).

6391471104 is an abundant number, since it is smaller than the sum of its proper divisors (14438800896).

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

6391471104 is an equidigital number, since it uses as much as digits as its factorization.

6391471104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 6391471104 is about 79946.6766288631. The cubic root of 6391471104 is about 1855.8104245530.

The spelling of 6391471104 in words is "six billion, three hundred ninety-one million, four hundred seventy-one thousand, one hundred four".