7770783978496 has 704 divisors, whose sum is σ = 20976681300480. Its totient is φ = 2788900208640.

The previous prime is 7770783978481. The next prime is 7770783978523. The reversal of 7770783978496 is 6948793870777.

It is a tau number, because it is divible by the number of its divisors (704).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4484006046 + ... + 4484007778.

Almost surely, 2^{7770783978496} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7770783978496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10488340650240).

7770783978496 is an abundant number, since it is smaller than the sum of its proper divisors (13205897321984).

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

7770783978496 is a wasteful number, since it uses less digits than its factorization.

7770783978496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1890 (or 1872 counting only the distinct ones).

The product of its (nonzero) digits is 6273179136, while the sum is 82.

It can be divided in two parts, 777078 and 3978496, that added together give a palindrome (4755574).

The spelling of 7770783978496 in words is "seven trillion, seven hundred seventy billion, seven hundred eighty-three million, nine hundred seventy-eight thousand, four hundred ninety-six".