321941048640 has 112 divisors (see below), whose sum is σ = 1022784758592. Its totient is φ = 85798711296.

The previous prime is 321941048621. The next prime is 321941048669. The reversal of 321941048640 is 46840149123.

It is a junction number, because it is equal to n+sod(n) for n = 321941048592 and 321941048601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1489527 + ... + 1691913.

Almost surely, 2^321941048640 is an apocalyptic number.

321941048640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321941048640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (511392379296).

321941048640 is an abundant number, since it is smaller than the sum of its proper divisors (700843709952).

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

321941048640 is a wasteful number, since it uses less digits than its factorization.

321941048640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204064 (or 204054 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The spelling of 321941048640 in words is "three hundred twenty-one billion, nine hundred forty-one million, forty-eight thousand, six hundred forty".