42104140640 has 24 divisors (see below), whose sum is σ = 99471032640. Its totient is φ = 16841656192.

The previous prime is 42104140633. The next prime is 42104140643. The reversal of 42104140640 is 4604140124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42104140643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131575280 + ... + 131575599.

It is an arithmetic number, because the mean of its divisors is an integer number (4144626360).

Almost surely, 2^42104140640 is an apocalyptic number.

42104140640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42104140640 is an abundant number, since it is smaller than the sum of its proper divisors (57366892000).

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

42104140640 is a wasteful number, since it uses less digits than its factorization.

42104140640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263150894 (or 263150886 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 42104140640 its reverse (4604140124), we get a palindrome (46708280764).

The spelling of 42104140640 in words is "forty-two billion, one hundred four million, one hundred forty thousand, six hundred forty".