321444542046 has 32 divisors (see below), whose sum is σ = 646014652416. Its totient is φ = 106628000000.

The previous prime is 321444542011. The next prime is 321444542047. The reversal of 321444542046 is 640245444123.

It is a super-2 number, since 2×321444542046² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321444541995 and 321444542013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321444542047) 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 in 15 ways as a sum of consecutive naturals, for example, 1640686 + ... + 1826126.

It is an arithmetic number, because the mean of its divisors is an integer number (20187957888).

Almost surely, 2^321444542046 is an apocalyptic number.

321444542046 is an abundant number, since it is smaller than the sum of its proper divisors (324570110370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321444542046 is a wasteful number, since it uses less digits than its factorization.

321444542046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186848.

The product of its (nonzero) digits is 368640, while the sum is 39.

Adding to 321444542046 its reverse (640245444123), we get a palindrome (961689986169).

The spelling of 321444542046 in words is "three hundred twenty-one billion, four hundred forty-four million, five hundred forty-two thousand, forty-six".