42505603142 has 4 divisors (see below), whose sum is σ = 63758404716. Its totient is φ = 21252801570.

The previous prime is 42505603103. The next prime is 42505603163. The reversal of 42505603142 is 24130650524.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 42505603099 and 42505603108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10626400784 + ... + 10626400787.

It is an arithmetic number, because the mean of its divisors is an integer number (15939601179).

Almost surely, 2^42505603142 is an apocalyptic number.

42505603142 is a deficient number, since it is larger than the sum of its proper divisors (21252801574).

42505603142 is a wasteful number, since it uses less digits than its factorization.

42505603142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21252801573.

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 42505603142 in words is "forty-two billion, five hundred five million, six hundred three thousand, one hundred forty-two".