42405505046 has 4 divisors (see below), whose sum is σ = 63608257572. Its totient is φ = 21202752522.

The previous prime is 42405505039. The next prime is 42405505049. The reversal of 42405505046 is 64050550424.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42405504997 and 42405505015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42405505049) 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 as a sum of consecutive naturals, namely, 10601376260 + ... + 10601376263.

It is an arithmetic number, because the mean of its divisors is an integer number (15902064393).

Almost surely, 2^42405505046 is an apocalyptic number.

42405505046 is a deficient number, since it is larger than the sum of its proper divisors (21202752526).

42405505046 is a wasteful number, since it uses less digits than its factorization.

42405505046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21202752525.

The product of its (nonzero) digits is 96000, while the sum is 35.

The spelling of 42405505046 in words is "forty-two billion, four hundred five million, five hundred five thousand, forty-six".