7776000000000 has 900 divisors, whose sum is σ = 29119108346328. Its totient is φ = 2073600000000.

The previous prime is 7775999999981. The next prime is 7776000000007. The reversal of 7776000000000 is 6777.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a tau number, because it is divible by the number of its divisors (900).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7776000000007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1555199999998 + ... + 1555200000002.

Almost surely, 2^{7776000000000} 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 7776000000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14559554173164).

7776000000000 is an abundant number, since it is smaller than the sum of its proper divisors (21343108346328).

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

7776000000000 is an frugal number, since it uses more digits than its factorization.

7776000000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88 (or 10 counting only the distinct ones).

The product of its (nonzero) digits is 2058, while the sum is 27.

Adding to 7776000000000 its reverse (6777), we get a palindrome (7776000006777).

The spelling of 7776000000000 in words is "seven trillion, seven hundred seventy-six billion", and thus it is an aban number.