42102244002442 has 8 divisors (see below), whose sum is σ = 68011317234756. Its totient is φ = 19431804924192.

The previous prime is 42102244002433. The next prime is 42102244002479. The reversal of 42102244002442 is 24420044220124.

It can be written as a sum of positive squares in 2 ways, for example, as 40793373006961 + 1308870995481 = 6386969^2 + 1144059^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 809658538483 + ... + 809658538534.

Almost surely, 2^{42102244002442} is an apocalyptic number.

42102244002442 is a deficient number, since it is larger than the sum of its proper divisors (25909073232314).

42102244002442 is a wasteful number, since it uses less digits than its factorization.

42102244002442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619317077032.

The product of its (nonzero) digits is 32768, while the sum is 31.

Adding to 42102244002442 its reverse (24420044220124), we get a palindrome (66522288222566).

The spelling of 42102244002442 in words is "forty-two trillion, one hundred two billion, two hundred forty-four million, two thousand, four hundred forty-two".