6467381220 has 48 divisors (see below), whose sum is σ = 18117792000. Its totient is φ = 1723766016.

The previous prime is 6467381203. The next prime is 6467381237. The reversal of 6467381220 is 221837646.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6467381203) and next prime (6467381237).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97656 + ... + 149904.

It is an arithmetic number, because the mean of its divisors is an integer number (377454000).

Almost surely, 2^6467381220 is an apocalyptic number.

6467381220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6467381220 is an abundant number, since it is smaller than the sum of its proper divisors (11650410780).

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

6467381220 is a wasteful number, since it uses less digits than its factorization.

6467381220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54324 (or 54322 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 6467381220 is about 80420.0299676642. The cubic root of 6467381220 is about 1863.1285479425.

The spelling of 6467381220 in words is "six billion, four hundred sixty-seven million, three hundred eighty-one thousand, two hundred twenty".