42834506749 has 4 divisors (see below), whose sum is σ = 42841311100. Its totient is φ = 42827702400.

The previous prime is 42834506731. The next prime is 42834506783. The reversal of 42834506749 is 94760543824.

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 37824415225 + 5010091524 = 194485^2 + 70782^2 .

It is a cyclic number.

It is not a de Polignac number, because 42834506749 - 2⁹ = 42834506237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42834506696 and 42834506705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42834506789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3392724 + ... + 3405325.

It is an arithmetic number, because the mean of its divisors is an integer number (10710327775).

Almost surely, 2^42834506749 is an apocalyptic number.

It is an amenable number.

42834506749 is a deficient number, since it is larger than the sum of its proper divisors (6804351).

42834506749 is an equidigital number, since it uses as much as digits as its factorization.

42834506749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6804350.

The product of its (nonzero) digits is 5806080, while the sum is 52.

The spelling of 42834506749 in words is "forty-two billion, eight hundred thirty-four million, five hundred six thousand, seven hundred forty-nine".