7979681844480 has 144 divisors (see below), whose sum is σ = 25486571605824. Its totient is φ = 2127793029120.

The previous prime is 7979681844427. The next prime is 7979681844499. The reversal of 7979681844480 is 844481869797.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81309040 + ... + 81407120.

It is an arithmetic number, because the mean of its divisors is an integer number (176990080596).

Almost surely, 2^{7979681844480} is an apocalyptic number.

It is an amenable number.

7979681844480 is an abundant number, since it is smaller than the sum of its proper divisors (17506889761344).

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

7979681844480 is a wasteful number, since it uses less digits than its factorization.

7979681844480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119292 (or 119278 counting only the distinct ones).

The product of its (nonzero) digits is 780337152, while the sum is 75.

The spelling of 7979681844480 in words is "seven trillion, nine hundred seventy-nine billion, six hundred eighty-one million, eight hundred forty-four thousand, four hundred eighty".