775304881083668 has 24 divisors (see below), whose sum is σ = 1461153053774568. Its totient is φ = 357832643152896.

The previous prime is 775304881083661. The next prime is 775304881083673. The reversal of 775304881083668 is 866380188403577.

It can be written as a sum of positive squares in 4 ways, for example, as 7796146296964 + 767508734786704 = 2792158^2 + 27703948^2 .

It is a junction number, because it is equal to n+sod(n) for n = 775304881083595 and 775304881083604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (775304881083661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45074480 + ... + 59852472.

It is an arithmetic number, because the mean of its divisors is an integer number (60881377240607).

Almost surely, 2^{775304881083668} is an apocalyptic number.

It is an amenable number.

775304881083668 is a deficient number, since it is larger than the sum of its proper divisors (685848172690900).

775304881083668 is a wasteful number, since it uses less digits than its factorization.

775304881083668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15786923 (or 15786921 counting only the distinct ones).

The product of its (nonzero) digits is 1300561920, while the sum is 74.

The spelling of 775304881083668 in words is "seven hundred seventy-five trillion, three hundred four billion, eight hundred eighty-one million, eighty-three thousand, six hundred sixty-eight".