775777068 has 96 divisors (see below), whose sum is σ = 2309664000. Its totient is φ = 222704640.

The previous prime is 775777043. The next prime is 775777069. The reversal of 775777068 is 860777577.

775777068 is a `hidden beast` number, since 7 + 7 + 577 + 7 + 0 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (775777069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5388 + ... + 39756.

It is an arithmetic number, because the mean of its divisors is an integer number (24059000).

Almost surely, 2^775777068 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 775777068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1154832000).

775777068 is an abundant number, since it is smaller than the sum of its proper divisors (1533886932).

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

775777068 is a wasteful number, since it uses less digits than its factorization.

775777068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34412 (or 34404 counting only the distinct ones).

The product of its (nonzero) digits is 4033680, while the sum is 54.

The square root of 775777068 is about 27852.7748707377. The cubic root of 775777068 is about 918.8521712280.

The spelling of 775777068 in words is "seven hundred seventy-five million, seven hundred seventy-seven thousand, sixty-eight".