42734343668 has 24 divisors (see below), whose sum is σ = 75572435400. Its totient is φ = 21142315008.

The previous prime is 42734343569. The next prime is 42734343683. The reversal of 42734343668 is 86634343724.

It can be written as a sum of positive squares in 4 ways, for example, as 105308644 + 42629035024 = 10262^2 + 206468^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2423588 + ... + 2441156.

It is an arithmetic number, because the mean of its divisors is an integer number (3148851475).

Almost surely, 2^42734343668 is an apocalyptic number.

It is an amenable number.

42734343668 is a deficient number, since it is larger than the sum of its proper divisors (32838091732).

42734343668 is a wasteful number, since it uses less digits than its factorization.

42734343668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23939 (or 23937 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 50.

The spelling of 42734343668 in words is "forty-two billion, seven hundred thirty-four million, three hundred forty-three thousand, six hundred sixty-eight".