7983020779776 has 405 divisors, whose sum is σ = 27700160689971. Its totient is φ = 2280049357824.

The previous prime is 7983020779717. The next prime is 7983020779807. The reversal of 7983020779776 is 6779770203897.

The square root of 7983020779776 is 2825424.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×7983020779776² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 2848025991 + ... + 2848028793.

Almost surely, 2^{7983020779776} is an apocalyptic number.

7983020779776 is the 2825424-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7983020779776

7983020779776 is an abundant number, since it is smaller than the sum of its proper divisors (19717139910195).

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

7983020779776 is an frugal number, since it uses more digits than its factorization.

7983020779776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5648 (or 2815 counting only the distinct ones).

The product of its (nonzero) digits is 392073696, while the sum is 72.

The spelling of 7983020779776 in words is "seven trillion, nine hundred eighty-three billion, twenty million, seven hundred seventy-nine thousand, seven hundred seventy-six".