42431356444 has 6 divisors (see below), whose sum is σ = 74254873784. Its totient is φ = 21215678220.

The previous prime is 42431356421. The next prime is 42431356483. The reversal of 42431356444 is 44465313424.

It is a junction number, because it is equal to n+sod(n) for n = 42431356397 and 42431356406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5303919552 + ... + 5303919559.

Almost surely, 2^42431356444 is an apocalyptic number.

It is an amenable number.

42431356444 is a deficient number, since it is larger than the sum of its proper divisors (31823517340).

42431356444 is a wasteful number, since it uses less digits than its factorization.

42431356444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10607839115 (or 10607839113 counting only the distinct ones).

The product of its digits is 552960, while the sum is 40.

Adding to 42431356444 its reverse (44465313424), we get a palindrome (86896669868).

The spelling of 42431356444 in words is "forty-two billion, four hundred thirty-one million, three hundred fifty-six thousand, four hundred forty-four".