7321785328260 has 864 divisors, whose sum is σ = 26589378816000. Its totient is φ = 1685531607552.

The previous prime is 7321785328219. The next prime is 7321785328301. The reversal of 7321785328260 is 628235871237.

7321785328260 is a `hidden beast` number, since 7 + 3 + 21 + 7 + 8 + 532 + 82 + 6 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (7321785328219) and next prime (7321785328301).

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

It is a junction number, because it is equal to n+sod(n) for n = 7321785328197 and 7321785328206.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 1232828371 + ... + 1232834309.

It is an arithmetic number, because the mean of its divisors is an integer number (30774744000).

Almost surely, 2^{7321785328260} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7321785328260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13294689408000).

7321785328260 is an abundant number, since it is smaller than the sum of its proper divisors (19267593487740).

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

7321785328260 is a wasteful number, since it uses less digits than its factorization.

7321785328260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6087 (or 6060 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The spelling of 7321785328260 in words is "seven trillion, three hundred twenty-one billion, seven hundred eighty-five million, three hundred twenty-eight thousand, two hundred sixty".