321461411631645 has 32 divisors (see below), whose sum is σ = 515424844800000. Its totient is φ = 171084022046784.

The previous prime is 321461411631643. The next prime is 321461411631733. The reversal of 321461411631645 is 546136114164123.

It is a happy number.

It is not a de Polignac number, because 321461411631645 - 2¹ = 321461411631643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 321461411631594 and 321461411631603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321461411631643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35118676 + ... + 43315634.

It is an arithmetic number, because the mean of its divisors is an integer number (16107026400000).

Almost surely, 2^{321461411631645} is an apocalyptic number.

It is an amenable number.

321461411631645 is a deficient number, since it is larger than the sum of its proper divisors (193963433168355).

321461411631645 is a wasteful number, since it uses less digits than its factorization.

321461411631645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8202489.

The product of its digits is 1244160, while the sum is 48.

Adding to 321461411631645 its reverse (546136114164123), we get a palindrome (867597525795768).

The spelling of 321461411631645 in words is "three hundred twenty-one trillion, four hundred sixty-one billion, four hundred eleven million, six hundred thirty-one thousand, six hundred forty-five".