6470543920 has 40 divisors (see below), whose sum is σ = 15078365280. Its totient is φ = 2582307840.

The previous prime is 6470543873. The next prime is 6470543929. The reversal of 6470543920 is 293450746.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (6470543929) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 57001 + ... + 127240.

It is an arithmetic number, because the mean of its divisors is an integer number (376959132).

Almost surely, 2^6470543920 is an apocalyptic number.

It is an amenable number.

6470543920 is an abundant number, since it is smaller than the sum of its proper divisors (8607821360).

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

6470543920 is a wasteful number, since it uses less digits than its factorization.

6470543920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184693 (or 184687 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 6470543920 is about 80439.6911978160. The cubic root of 6470543920 is about 1863.4322028632.

The spelling of 6470543920 in words is "six billion, four hundred seventy million, five hundred forty-three thousand, nine hundred twenty".