7278206304992 has 192 divisors, whose sum is σ = 17094321699840. Its totient is φ = 2985467756544.

The previous prime is 7278206304989. The next prime is 7278206305031. The reversal of 7278206304992 is 2994036028727.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 428297648 + ... + 428314640.

It is an arithmetic number, because the mean of its divisors is an integer number (89032925520).

Almost surely, 2^{7278206304992} 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 7278206304992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8547160849920).

7278206304992 is an abundant number, since it is smaller than the sum of its proper divisors (9816115394848).

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

7278206304992 is a wasteful number, since it uses less digits than its factorization.

7278206304992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17945 (or 17937 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 59.

The spelling of 7278206304992 in words is "seven trillion, two hundred seventy-eight billion, two hundred six million, three hundred four thousand, nine hundred ninety-two".