42602697689 has 4 divisors (see below), whose sum is σ = 44071756260. Its totient is φ = 41133639120.

The previous prime is 42602697677. The next prime is 42602697703. The reversal of 42602697689 is 98679620624.

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 21876776464 + 20725921225 = 147908^2 + 143965^2 .

It is a cyclic number.

It is not a de Polignac number, because 42602697689 - 2⁸ = 42602697433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42602697659) 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, 734529242 + ... + 734529299.

It is an arithmetic number, because the mean of its divisors is an integer number (11017939065).

Almost surely, 2^42602697689 is an apocalyptic number.

It is an amenable number.

42602697689 is a deficient number, since it is larger than the sum of its proper divisors (1469058571).

42602697689 is a wasteful number, since it uses less digits than its factorization.

42602697689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469058570.

The product of its (nonzero) digits is 15676416, while the sum is 59.

The spelling of 42602697689 in words is "forty-two billion, six hundred two million, six hundred ninety-seven thousand, six hundred eighty-nine".