42155243204 has 12 divisors (see below), whose sum is σ = 76315526700. Its totient is φ = 20350807008.

The previous prime is 42155243153. The next prime is 42155243257. The reversal of 42155243204 is 40234255124.

42155243204 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6962233600 + 35193009604 = 83440^2 + 187598^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181703519 + ... + 181703750.

It is an arithmetic number, because the mean of its divisors is an integer number (6359627225).

Almost surely, 2^42155243204 is an apocalyptic number.

It is an amenable number.

42155243204 is a deficient number, since it is larger than the sum of its proper divisors (34160283496).

42155243204 is a wasteful number, since it uses less digits than its factorization.

42155243204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363407302 (or 363407300 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 42155243204 its reverse (40234255124), we get a palindrome (82389498328).

The spelling of 42155243204 in words is "forty-two billion, one hundred fifty-five million, two hundred forty-three thousand, two hundred four".