771543393361 has 16 divisors (see below), whose sum is σ = 874671293440. Its totient is φ = 674673598080.

The previous prime is 771543393349. The next prime is 771543393377. The reversal of 771543393361 is 163393345177.

It is a cyclic number.

It is not a de Polignac number, because 771543393361 - 2⁷ = 771543393233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 771543393299 and 771543393308.

It is not an unprimeable number, because it can be changed into a prime (771543393301) 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 15 ways as a sum of consecutive naturals, for example, 5160976 + ... + 5308366.

It is an arithmetic number, because the mean of its divisors is an integer number (54666955840).

Almost surely, 2^771543393361 is an apocalyptic number.

It is an amenable number.

771543393361 is a deficient number, since it is larger than the sum of its proper divisors (103127900079).

771543393361 is a wasteful number, since it uses less digits than its factorization.

771543393361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168616.

The product of its digits is 4286520, while the sum is 52.

The spelling of 771543393361 in words is "seven hundred seventy-one billion, five hundred forty-three million, three hundred ninety-three thousand, three hundred sixty-one".