42243421412 has 6 divisors (see below), whose sum is σ = 73925987478. Its totient is φ = 21121710704.

The previous prime is 42243421369. The next prime is 42243421439. The reversal of 42243421412 is 21412434224.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 41879985316 + 363436096 = 204646^2 + 19064^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5280427673 + ... + 5280427680.

It is an arithmetic number, because the mean of its divisors is an integer number (12320997913).

Almost surely, 2^42243421412 is an apocalyptic number.

It is an amenable number.

42243421412 is a deficient number, since it is larger than the sum of its proper divisors (31682566066).

42243421412 is a wasteful number, since it uses less digits than its factorization.

42243421412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10560855357 (or 10560855355 counting only the distinct ones).

The product of its digits is 12288, while the sum is 29.

Adding to 42243421412 its reverse (21412434224), we get a palindrome (63655855636).

The spelling of 42243421412 in words is "forty-two billion, two hundred forty-three million, four hundred twenty-one thousand, four hundred twelve".