6771768511780 has 24 divisors (see below), whose sum is σ = 14221679460408. Its totient is φ = 2708523483648.

The previous prime is 6771768511777. The next prime is 6771768511813. The reversal of 6771768511780 is 871158671776.

It can be written as a sum of positive squares in 4 ways, for example, as 2130992683264 + 4640775828516 = 1459792^2 + 2154246^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11192959 + ... + 11782438.

It is an arithmetic number, because the mean of its divisors is an integer number (592569977517).

Almost surely, 2^{6771768511780} is an apocalyptic number.

It is an amenable number.

6771768511780 is an abundant number, since it is smaller than the sum of its proper divisors (7449910948628).

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

6771768511780 is a wasteful number, since it uses less digits than its factorization.

6771768511780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22990143 (or 22990141 counting only the distinct ones).

The product of its (nonzero) digits is 27659520, while the sum is 64.

The spelling of 6771768511780 in words is "six trillion, seven hundred seventy-one billion, seven hundred sixty-eight million, five hundred eleven thousand, seven hundred eighty".