423631342663642 has 24 divisors (see below), whose sum is σ = 681480445002336. Its totient is φ = 197130448495728.

The previous prime is 423631342663609. The next prime is 423631342663663. The reversal of 423631342663642 is 246366243136324.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3363478668 + ... + 3363604615.

It is an arithmetic number, because the mean of its divisors is an integer number (28395018541764).

Almost surely, 2^{423631342663642} is an apocalyptic number.

423631342663642 is a deficient number, since it is larger than the sum of its proper divisors (257849102338694).

423631342663642 is a wasteful number, since it uses less digits than its factorization.

423631342663642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6727083382 (or 6727083345 counting only the distinct ones).

The product of its digits is 53747712, while the sum is 55.

Adding to 423631342663642 its reverse (246366243136324), we get a palindrome (669997585799966).

The spelling of 423631342663642 in words is "four hundred twenty-three trillion, six hundred thirty-one billion, three hundred forty-two million, six hundred sixty-three thousand, six hundred forty-two".