42140042012 has 24 divisors (see below), whose sum is σ = 77792682240. Its totient is φ = 19918312560.

The previous prime is 42140041981. The next prime is 42140042057. The reversal of 42140042012 is 21024004124.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 558164 + ... + 629147.

It is an arithmetic number, because the mean of its divisors is an integer number (3241361760).

Almost surely, 2^42140042012 is an apocalyptic number.

It is an amenable number.

42140042012 is a deficient number, since it is larger than the sum of its proper divisors (35652640228).

42140042012 is a wasteful number, since it uses less digits than its factorization.

42140042012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187801 (or 1187799 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 42140042012 its reverse (21024004124), we get a palindrome (63164046136).

The spelling of 42140042012 in words is "forty-two billion, one hundred forty million, forty-two thousand, twelve".