1423144530646 has 4 divisors (see below), whose sum is σ = 2134716795972. Its totient is φ = 711572265322.

The previous prime is 1423144530629. The next prime is 1423144530649. The reversal of 1423144530646 is 6460354413241.

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 (1423144530649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355786132660 + ... + 355786132663.

It is an arithmetic number, because the mean of its divisors is an integer number (533679198993).

Almost surely, 2^{1423144530646} is an apocalyptic number.

1423144530646 is a deficient number, since it is larger than the sum of its proper divisors (711572265326).

1423144530646 is an equidigital number, since it uses as much as digits as its factorization.

1423144530646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711572265325.

The product of its (nonzero) digits is 829440, while the sum is 43.

Adding to 1423144530646 its reverse (6460354413241), we get a palindrome (7883498943887).

The spelling of 1423144530646 in words is "one trillion, four hundred twenty-three billion, one hundred forty-four million, five hundred thirty thousand, six hundred forty-six".