42123344444 has 6 divisors (see below), whose sum is σ = 73715852784. Its totient is φ = 21061672220.

The previous prime is 42123344441. The next prime is 42123344467. The reversal of 42123344444 is 44444332124.

It is a super-2 number, since 2×42123344444² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42123344441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5265418052 + ... + 5265418059.

It is an arithmetic number, because the mean of its divisors is an integer number (12285975464).

Almost surely, 2^42123344444 is an apocalyptic number.

It is an amenable number.

42123344444 is a deficient number, since it is larger than the sum of its proper divisors (31592508340).

42123344444 is a wasteful number, since it uses less digits than its factorization.

42123344444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10530836115 (or 10530836113 counting only the distinct ones).

The product of its digits is 147456, while the sum is 35.

Adding to 42123344444 its reverse (44444332124), we get a palindrome (86567676568).

The spelling of 42123344444 in words is "forty-two billion, one hundred twenty-three million, three hundred forty-four thousand, four hundred forty-four".