7920722047680 has 224 divisors, whose sum is σ = 30091974360000. Its totient is φ = 1949716168704.

The previous prime is 7920722047633. The next prime is 7920722047703. The reversal of 7920722047680 is 867402270297.

It is a happy number.

7920722047680 is a `hidden beast` number, since 7 + 9 + 2 + 0 + 72 + 20 + 476 + 80 = 666.

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

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, 35147305 + ... + 35371944.

It is an arithmetic number, because the mean of its divisors is an integer number (134339171250).

Almost surely, 2^{7920722047680} is an apocalyptic number.

It is an amenable number.

7920722047680 is an abundant number, since it is smaller than the sum of its proper divisors (22171252312320).

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

7920722047680 is a wasteful number, since it uses less digits than its factorization.

7920722047680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70519288 (or 70519272 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 54.

The spelling of 7920722047680 in words is "seven trillion, nine hundred twenty billion, seven hundred twenty-two million, forty-seven thousand, six hundred eighty".