6420242613 has 8 divisors (see below), whose sum is σ = 8617014976. Its totient is φ = 4251816000.

The previous prime is 6420242579. The next prime is 6420242683. The reversal of 6420242613 is 3162420246.

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

It is not a de Polignac number, because 6420242613 - 2¹⁴ = 6420226229 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6420242683) 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, 7085908 + ... + 7086813.

It is an arithmetic number, because the mean of its divisors is an integer number (1077126872).

Almost surely, 2^6420242613 is an apocalyptic number.

It is an amenable number.

6420242613 is a deficient number, since it is larger than the sum of its proper divisors (2196772363).

6420242613 is a wasteful number, since it uses less digits than its factorization.

6420242613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14172875.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 6420242613 is about 80126.4164492585. The cubic root of 6420242613 is about 1858.5909292806.

Adding to 6420242613 its reverse (3162420246), we get a palindrome (9582662859).

The spelling of 6420242613 in words is "six billion, four hundred twenty million, two hundred forty-two thousand, six hundred thirteen".