7973771820465 has 24 divisors (see below), whose sum is σ = 14023294576704. Its totient is φ = 3866071184800.

The previous prime is 7973771820439. The next prime is 7973771820481. The reversal of 7973771820465 is 5640281773797.

It is not a de Polignac number, because 7973771820465 - 2¹¹ = 7973771818417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7973771820396 and 7973771820405.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2196629541 + ... + 2196633170.

It is an arithmetic number, because the mean of its divisors is an integer number (584303940696).

It is a 1-persistent number, because it is pandigital, but 2⋅7973771820465 = 15947543640930 is not.

Almost surely, 2^{7973771820465} is an apocalyptic number.

It is an amenable number.

7973771820465 is a deficient number, since it is larger than the sum of its proper divisors (6049522756239).

7973771820465 is a wasteful number, since it uses less digits than its factorization.

7973771820465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4393262741 (or 4393262730 counting only the distinct ones).

The product of its (nonzero) digits is 124467840, while the sum is 66.

The spelling of 7973771820465 in words is "seven trillion, nine hundred seventy-three billion, seven hundred seventy-one million, eight hundred twenty thousand, four hundred sixty-five".