6240815105442 has 64 divisors (see below), whose sum is σ = 13400626314240. Its totient is φ = 1931794401600.

The previous prime is 6240815105353. The next prime is 6240815105443. The reversal of 6240815105442 is 2445015180426.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 6240815105394 and 6240815105403.

It is not an unprimeable number, because it can be changed into a prime (6240815105443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 828184 + ... + 3628707.

It is an arithmetic number, because the mean of its divisors is an integer number (209384786160).

Almost surely, 2^{6240815105442} is an apocalyptic number.

6240815105442 is an abundant number, since it is smaller than the sum of its proper divisors (7159811208798).

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

6240815105442 is a wasteful number, since it uses less digits than its factorization.

6240815105442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4457159.

The product of its (nonzero) digits is 307200, while the sum is 42.

The spelling of 6240815105442 in words is "six trillion, two hundred forty billion, eight hundred fifteen million, one hundred five thousand, four hundred forty-two".