42405666334 has 8 divisors (see below), whose sum is σ = 63632268648. Its totient is φ = 21194910120.

The previous prime is 42405666319. The next prime is 42405666343. The reversal of 42405666334 is 43366650424.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3954832 + ... + 3965539.

It is an arithmetic number, because the mean of its divisors is an integer number (7954033581).

Almost surely, 2^42405666334 is an apocalyptic number.

42405666334 is a deficient number, since it is larger than the sum of its proper divisors (21226602314).

42405666334 is a wasteful number, since it uses less digits than its factorization.

42405666334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7923050.

The product of its (nonzero) digits is 1244160, while the sum is 43.

The spelling of 42405666334 in words is "forty-two billion, four hundred five million, six hundred sixty-six thousand, three hundred thirty-four".