42606037505 has 4 divisors (see below), whose sum is σ = 51127245012. Its totient is φ = 34084830000.

The previous prime is 42606037489. The next prime is 42606037519. The reversal of 42606037505 is 50573060624.

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 11706374416 + 30899663089 = 108196^2 + 175783^2 .

It is not a de Polignac number, because 42606037505 - 2⁴ = 42606037489 is a prime.

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, 4260603746 + ... + 4260603755.

It is an arithmetic number, because the mean of its divisors is an integer number (12781811253).

Almost surely, 2^42606037505 is an apocalyptic number.

It is an amenable number.

42606037505 is a deficient number, since it is larger than the sum of its proper divisors (8521207507).

42606037505 is an equidigital number, since it uses as much as digits as its factorization.

42606037505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8521207506.

The product of its (nonzero) digits is 151200, while the sum is 38.

The spelling of 42606037505 in words is "forty-two billion, six hundred six million, thirty-seven thousand, five hundred five".