42132725105 has 4 divisors (see below), whose sum is σ = 50559270132. Its totient is φ = 33706180080.

The previous prime is 42132725069. The next prime is 42132725111. The reversal of 42132725105 is 50152723124.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20650839616 + 21481885489 = 143704^2 + 146567^2 .

It is not a de Polignac number, because 42132725105 - 2¹² = 42132721009 is a prime.

It is a super-2 number, since 2×42132725105² (a number of 22 digits) contains 22 as substring.

It is a Duffinian 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, 4213272506 + ... + 4213272515.

It is an arithmetic number, because the mean of its divisors is an integer number (12639817533).

Almost surely, 2^42132725105 is an apocalyptic number.

It is an amenable number.

42132725105 is a deficient number, since it is larger than the sum of its proper divisors (8426545027).

42132725105 is an equidigital number, since it uses as much as digits as its factorization.

42132725105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8426545026.

The product of its (nonzero) digits is 16800, while the sum is 32.

The spelling of 42132725105 in words is "forty-two billion, one hundred thirty-two million, seven hundred twenty-five thousand, one hundred five".