42668487622 has 4 divisors (see below), whose sum is σ = 64002731436. Its totient is φ = 21334243810.

The previous prime is 42668487619. The next prime is 42668487623. The reversal of 42668487622 is 22678486624.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42668487623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10667121904 + ... + 10667121907.

It is an arithmetic number, because the mean of its divisors is an integer number (16000682859).

Almost surely, 2^42668487622 is an apocalyptic number.

42668487622 is a deficient number, since it is larger than the sum of its proper divisors (21334243814).

42668487622 is a wasteful number, since it uses less digits than its factorization.

42668487622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21334243813.

The product of its digits is 12386304, while the sum is 55.

The spelling of 42668487622 in words is "forty-two billion, six hundred sixty-eight million, four hundred eighty-seven thousand, six hundred twenty-two".