642224275742 has 8 divisors (see below), whose sum is σ = 1100955901296. Its totient is φ = 275238975312.

The previous prime is 642224275723. The next prime is 642224275769. The reversal of 642224275742 is 247572422246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 22936581263 + ... + 22936581290.

It is an arithmetic number, because the mean of its divisors is an integer number (137619487662).

Almost surely, 2^642224275742 is an apocalyptic number.

642224275742 is a deficient number, since it is larger than the sum of its proper divisors (458731625554).

642224275742 is a wasteful number, since it uses less digits than its factorization.

642224275742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45873162562.

The product of its digits is 3010560, while the sum is 47.

Adding to 642224275742 its reverse (247572422246), we get a palindrome (889796697988).

The spelling of 642224275742 in words is "six hundred forty-two billion, two hundred twenty-four million, two hundred seventy-five thousand, seven hundred forty-two".