7940224763940 has 192 divisors, whose sum is σ = 25491722747904. Its totient is φ = 1808985111552.

The previous prime is 7940224763893. The next prime is 7940224763951. The reversal of 7940224763940 is 493674220497.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 307188097 + ... + 307213943.

It is an arithmetic number, because the mean of its divisors is an integer number (132769389312).

Almost surely, 2^{7940224763940} is an apocalyptic number.

7940224763940 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 7940224763940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12745861373952).

7940224763940 is an abundant number, since it is smaller than the sum of its proper divisors (17551497983964).

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

7940224763940 is a wasteful number, since it uses less digits than its factorization.

7940224763940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28226 (or 28224 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 57.

The spelling of 7940224763940 in words is "seven trillion, nine hundred forty billion, two hundred twenty-four million, seven hundred sixty-three thousand, nine hundred forty".