6420042460620 has 72 divisors (see below), whose sum is σ = 19499322141936. Its totient is φ = 1709796523392.

The previous prime is 6420042460577. The next prime is 6420042460627. The reversal of 6420042460620 is 260642400246.

6420042460620 is a `hidden beast` number, since 6 + 4 + 2 + 0 + 0 + 4 + 24 + 6 + 0 + 620 = 666.

It is a super-3 number, since 3×6420042460620³ (a number of 39 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (6420042460627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22931302 + ... + 23209581.

It is an arithmetic number, because the mean of its divisors is an integer number (270823918638).

Almost surely, 2^{6420042460620} is an apocalyptic number.

6420042460620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6420042460620 is an abundant number, since it is smaller than the sum of its proper divisors (13079279681316).

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

6420042460620 is a wasteful number, since it uses less digits than its factorization.

6420042460620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46141671 (or 46141666 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

Adding to 6420042460620 its reverse (260642400246), we get a palindrome (6680684860866).

The spelling of 6420042460620 in words is "six trillion, four hundred twenty billion, forty-two million, four hundred sixty thousand, six hundred twenty".