6420264024242 has 8 divisors (see below), whose sum is σ = 9630407462556. Its totient is φ = 3210128203392.

The previous prime is 6420264024133. The next prime is 6420264024259. The reversal of 6420264024242 is 2424204620246.

It can be written as a sum of positive squares in 2 ways, for example, as 6065428170481 + 354835853761 = 2462809^2 + 595681^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 6420264024196 and 6420264024205.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1243178 + ... + 3792890.

Almost surely, 2^{6420264024242} is an apocalyptic number.

6420264024242 is a deficient number, since it is larger than the sum of its proper divisors (3210143438314).

6420264024242 is a wasteful number, since it uses less digits than its factorization.

6420264024242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3808732.

The product of its (nonzero) digits is 294912, while the sum is 38.

Adding to 6420264024242 its reverse (2424204620246), we get a palindrome (8844468644488).

The spelling of 6420264024242 in words is "six trillion, four hundred twenty billion, two hundred sixty-four million, twenty-four thousand, two hundred forty-two".