777600000000 has 756 divisors, whose sum is σ = 2911820774772. Its totient is φ = 207360000000.

The previous prime is 777599999971. The next prime is 777600000013. The reversal of 777600000000 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 Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 777600000000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 155519999998 + ... + 155520000002.

Almost surely, 2^777600000000 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 777600000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1455910387386).

777600000000 is an abundant number, since it is smaller than the sum of its proper divisors (2134220774772).

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

777600000000 is an frugal number, since it uses more digits than its factorization.

777600000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 10 counting only the distinct ones).

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

Adding to 777600000000 its reverse (6777), we get a palindrome (777600006777).

The spelling of 777600000000 in words is "seven hundred seventy-seven billion, six hundred million", and thus it is an aban number.