6438124521242 has 32 divisors (see below), whose sum is σ = 9713028124800. Its totient is φ = 3200508799488.

The previous prime is 6438124521233. The next prime is 6438124521277. The reversal of 6438124521242 is 2421254218346.

It is a junction number, because it is equal to n+sod(n) for n = 6438124521193 and 6438124521202.

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, 1316856734 + ... + 1316861622.

It is an arithmetic number, because the mean of its divisors is an integer number (303532128900).

Almost surely, 2^{6438124521242} is an apocalyptic number.

6438124521242 is a deficient number, since it is larger than the sum of its proper divisors (3274903603558).

6438124521242 is a wasteful number, since it uses less digits than its factorization.

6438124521242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10310.

The product of its digits is 737280, while the sum is 44.

Adding to 6438124521242 its reverse (2421254218346), we get a palindrome (8859378739588).

The spelling of 6438124521242 in words is "six trillion, four hundred thirty-eight billion, one hundred twenty-four million, five hundred twenty-one thousand, two hundred forty-two".