42146340646 has 8 divisors (see below), whose sum is σ = 63547073784. Its totient is φ = 20963982720.

The previous prime is 42146340617. The next prime is 42146340661. The reversal of 42146340646 is 64604364124.

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

It is a junction number, because it is equal to n+sod(n) for n = 42146340599 and 42146340608.

It is a congruent number.

It is an unprimeable number.

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, 54593320 + ... + 54594091.

It is an arithmetic number, because the mean of its divisors is an integer number (7943384223).

Almost surely, 2^42146340646 is an apocalyptic number.

42146340646 is a deficient number, since it is larger than the sum of its proper divisors (21400733138).

42146340646 is a wasteful number, since it uses less digits than its factorization.

42146340646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109187606.

The product of its (nonzero) digits is 331776, while the sum is 40.

The spelling of 42146340646 in words is "forty-two billion, one hundred forty-six million, three hundred forty thousand, six hundred forty-six".