42142605737 has 4 divisors (see below), whose sum is σ = 42719901780. Its totient is φ = 41565309696.

The previous prime is 42142605733. The next prime is 42142605763. The reversal of 42142605737 is 73750624124.

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 26016399616 + 16126206121 = 161296^2 + 126989^2 .

It is a cyclic number.

It is not a de Polignac number, because 42142605737 - 2² = 42142605733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42142605694 and 42142605703.

It is not an unprimeable number, because it can be changed into a prime (42142605731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288647912 + ... + 288648057.

It is an arithmetic number, because the mean of its divisors is an integer number (10679975445).

Almost surely, 2^42142605737 is an apocalyptic number.

It is an amenable number.

42142605737 is a deficient number, since it is larger than the sum of its proper divisors (577296043).

42142605737 is an equidigital number, since it uses as much as digits as its factorization.

42142605737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577296042.

The product of its (nonzero) digits is 282240, while the sum is 41.

The spelling of 42142605737 in words is "forty-two billion, one hundred forty-two million, six hundred five thousand, seven hundred thirty-seven".