42248442578 has 16 divisors (see below), whose sum is σ = 65293876440. Its totient is φ = 20492774016.

The previous prime is 42248442569. The next prime is 42248442583. The reversal of 42248442578 is 87524484224.

It can be written as a sum of positive squares in 4 ways, for example, as 37122884929 + 5125557649 = 192673^2 + 71593^2 .

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, 2229725 + ... + 2248592.

Almost surely, 2^42248442578 is an apocalyptic number.

42248442578 is a deficient number, since it is larger than the sum of its proper divisors (23045433862).

42248442578 is a wasteful number, since it uses less digits than its factorization.

42248442578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4478461.

The product of its digits is 4587520, while the sum is 50.

The spelling of 42248442578 in words is "forty-two billion, two hundred forty-eight million, four hundred forty-two thousand, five hundred seventy-eight".