42043365452 has 24 divisors (see below), whose sum is σ = 84489061440. Its totient is φ = 18104798160.

The previous prime is 42043365379. The next prime is 42043365479. The reversal of 42043365452 is 25456334024.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25144718 + ... + 25146389.

It is an arithmetic number, because the mean of its divisors is an integer number (3520377560).

Almost surely, 2^42043365452 is an apocalyptic number.

It is an amenable number.

42043365452 is an abundant number, since it is smaller than the sum of its proper divisors (42445695988).

42043365452 is a wasteful number, since it uses less digits than its factorization.

42043365452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50291141 (or 50291139 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 38.

Adding to 42043365452 its reverse (25456334024), we get a palindrome (67499699476).

The spelling of 42043365452 in words is "forty-two billion, forty-three million, three hundred sixty-five thousand, four hundred fifty-two".