42551435323105 has 8 divisors (see below), whose sum is σ = 51061851150912. Its totient is φ = 34041062416368.

The previous prime is 42551435323069. The next prime is 42551435323121. The reversal of 42551435323105 is 50132353415524.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42551435323105 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8507347 + ... + 12549016.

It is an arithmetic number, because the mean of its divisors is an integer number (6382731393864).

Almost surely, 2^{42551435323105} is an apocalyptic number.

It is an amenable number.

42551435323105 is a deficient number, since it is larger than the sum of its proper divisors (8510415827807).

42551435323105 is a wasteful number, since it uses less digits than its factorization.

42551435323105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21460535.

The product of its (nonzero) digits is 1080000, while the sum is 43.

Adding to 42551435323105 its reverse (50132353415524), we get a palindrome (92683788738629).

The spelling of 42551435323105 in words is "forty-two trillion, five hundred fifty-one billion, four hundred thirty-five million, three hundred twenty-three thousand, one hundred five".