6424421505 has 16 divisors (see below), whose sum is σ = 10280571840. Its totient is φ = 3425859008.

The previous prime is 6424421491. The next prime is 6424421557. The reversal of 6424421505 is 5051244246.

6424421505 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 6424421505 - 2⁵ = 6424421473 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90526 + ... + 145064.

It is an arithmetic number, because the mean of its divisors is an integer number (642535740).

Almost surely, 2^6424421505 is an apocalyptic number.

It is an amenable number.

6424421505 is a deficient number, since it is larger than the sum of its proper divisors (3856150335).

6424421505 is a wasteful number, since it uses less digits than its factorization.

6424421505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62400.

The product of its (nonzero) digits is 38400, while the sum is 33.

The square root of 6424421505 is about 80152.4890755116. The cubic root of 6424421505 is about 1858.9940898626.

The spelling of 6424421505 in words is "six billion, four hundred twenty-four million, four hundred twenty-one thousand, five hundred five".