42105523151 has 4 divisors (see below), whose sum is σ = 42105994392. Its totient is φ = 42105051912.

The previous prime is 42105523123. The next prime is 42105523199. The reversal of 42105523151 is 15132550124.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42105523151 - 2¹⁸ = 42105261007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42105523121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55901 + ... + 295526.

It is an arithmetic number, because the mean of its divisors is an integer number (10526498598).

Almost surely, 2^42105523151 is an apocalyptic number.

42105523151 is a deficient number, since it is larger than the sum of its proper divisors (471241).

42105523151 is a wasteful number, since it uses less digits than its factorization.

42105523151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471240.

The product of its (nonzero) digits is 6000, while the sum is 29.

The spelling of 42105523151 in words is "forty-two billion, one hundred five million, five hundred twenty-three thousand, one hundred fifty-one".