6419240021 has 8 divisors (see below), whose sum is σ = 6473088384. Its totient is φ = 6365575440.

The previous prime is 6419240011. The next prime is 6419240033. The reversal of 6419240021 is 1200429146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6419240021 - 2¹⁰ = 6419238997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6419240011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24656 + ... + 115958.

It is an arithmetic number, because the mean of its divisors is an integer number (809136048).

Almost surely, 2^6419240021 is an apocalyptic number.

It is an amenable number.

6419240021 is a deficient number, since it is larger than the sum of its proper divisors (53848363).

6419240021 is a wasteful number, since it uses less digits than its factorization.

6419240021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91891.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 6419240021 is about 80120.1598912533. The cubic root of 6419240021 is about 1858.4941777239.

Adding to 6419240021 its reverse (1200429146), we get a palindrome (7619669167).

The spelling of 6419240021 in words is "six billion, four hundred nineteen million, two hundred forty thousand, twenty-one".