321078947382 has 160 divisors (see below), whose sum is σ = 764564562432. Its totient is φ = 100504647936.

The previous prime is 321078947341. The next prime is 321078947383. The reversal of 321078947382 is 283749870123.

321078947382 is a `hidden beast` number, since 3 + 2 + 10 + 7 + 89 + 473 + 82 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321078947383) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 45047503 + ... + 45054629.

Almost surely, 2^321078947382 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321078947382, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (382282281216).

321078947382 is an abundant number, since it is smaller than the sum of its proper divisors (443485615050).

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

321078947382 is a wasteful number, since it uses less digits than its factorization.

321078947382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7384 (or 7375 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 321078947382 in words is "three hundred twenty-one billion, seventy-eight million, nine hundred forty-seven thousand, three hundred eighty-two".