42142242544 has 20 divisors (see below), whose sum is σ = 81658061496. Its totient is φ = 21069194432.

The previous prime is 42142242529. The next prime is 42142242559. The reversal of 42142242544 is 44524224124.

It is an interprime number because it is at equal distance from previous prime (42142242529) and next prime (42142242559).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 69042 + ... + 298414.

Almost surely, 2^42142242544 is an apocalyptic number.

It is an amenable number.

42142242544 is a deficient number, since it is larger than the sum of its proper divisors (39515818952).

42142242544 is a wasteful number, since it uses less digits than its factorization.

42142242544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240864 (or 240858 counting only the distinct ones).

The product of its digits is 81920, while the sum is 34.

Adding to 42142242544 its reverse (44524224124), we get a palindrome (86666466668).

The spelling of 42142242544 in words is "forty-two billion, one hundred forty-two million, two hundred forty-two thousand, five hundred forty-four".