6219481509 has 16 divisors (see below), whose sum is σ = 9215856000. Its totient is φ = 4145506848.

The previous prime is 6219481507. The next prime is 6219481559. The reversal of 6219481509 is 9051849126.

6219481509 is a `hidden beast` number, since 62 + 1 + 9 + 4 + 81 + 509 = 666.

It is not a de Polignac number, because 6219481509 - 2¹ = 6219481507 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6219481507) by changing a digit.

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, 138232 + ... + 177614.

It is an arithmetic number, because the mean of its divisors is an integer number (575991000).

Almost surely, 2^6219481509 is an apocalyptic number.

It is an amenable number.

6219481509 is a deficient number, since it is larger than the sum of its proper divisors (2996374491).

6219481509 is a wasteful number, since it uses less digits than its factorization.

6219481509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45241 (or 45235 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The square root of 6219481509 is about 78863.6894204170. The cubic root of 6219481509 is about 1839.0126938813.

The spelling of 6219481509 in words is "six billion, two hundred nineteen million, four hundred eighty-one thousand, five hundred nine".