7798966730940 has 768 divisors, whose sum is σ = 28389821644800. Its totient is φ = 1552711680000.

The previous prime is 7798966730899. The next prime is 7798966730957. The reversal of 7798966730940 is 490376698977.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 10141698876 + ... + 10141699644.

It is an arithmetic number, because the mean of its divisors is an integer number (36965913600).

Almost surely, 2^{7798966730940} is an apocalyptic number.

7798966730940 is a gapful number since it is divisible by the number (70) 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 7798966730940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14194910822400).

7798966730940 is an abundant number, since it is smaller than the sum of its proper divisors (20590854913860).

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

7798966730940 is a wasteful number, since it uses less digits than its factorization.

7798966730940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666 (or 1664 counting only the distinct ones).

The product of its (nonzero) digits is 864162432, while the sum is 75.

The spelling of 7798966730940 in words is "seven trillion, seven hundred ninety-eight billion, nine hundred sixty-six million, seven hundred thirty thousand, nine hundred forty".