42243636404 has 6 divisors (see below), whose sum is σ = 73926363714. Its totient is φ = 21121818200.

The previous prime is 42243636397. The next prime is 42243636439. The reversal of 42243636404 is 40463634224.

It can be written as a sum of positive squares in only one way, i.e., 41783448100 + 460188304 = 204410^2 + 21452^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5280454547 + ... + 5280454554.

It is an arithmetic number, because the mean of its divisors is an integer number (12321060619).

Almost surely, 2^42243636404 is an apocalyptic number.

It is an amenable number.

42243636404 is a deficient number, since it is larger than the sum of its proper divisors (31682727310).

42243636404 is a wasteful number, since it uses less digits than its factorization.

42243636404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10560909105 (or 10560909103 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 38.

The spelling of 42243636404 in words is "forty-two billion, two hundred forty-three million, six hundred thirty-six thousand, four hundred four".