321494504913792 has 512 divisors, whose sum is σ = 1109767995494400. Its totient is φ = 89707820267520.

The previous prime is 321494504913773. The next prime is 321494504913931. The reversal of 321494504913792 is 297319405494123.

321494504913792 is a `hidden beast` number, since 3 + 2 + 1 + 4 + 9 + 4 + 50 + 491 + 3 + 7 + 92 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10954921263 + ... + 10954950609.

It is an arithmetic number, because the mean of its divisors is an integer number (2167515616200).

Almost surely, 2^{321494504913792} is an apocalyptic number.

321494504913792 is a gapful number since it is divisible by the number (32) 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 321494504913792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (554883997747200).

321494504913792 is an abundant number, since it is smaller than the sum of its proper divisors (788273490580608).

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

321494504913792 is a wasteful number, since it uses less digits than its factorization.

321494504913792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39951 (or 39933 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 63.

The spelling of 321494504913792 in words is "three hundred twenty-one trillion, four hundred ninety-four billion, five hundred four million, nine hundred thirteen thousand, seven hundred ninety-two".