773534433121 has 4 divisors (see below), whose sum is σ = 773543393044. Its totient is φ = 773525473200.

The previous prime is 773534433053. The next prime is 773534433157. The reversal of 773534433121 is 121334435377.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 554524472896 + 219009960225 = 744664^2 + 467985^2 .

It is a cyclic number.

It is not a de Polignac number, because 773534433121 - 2²⁹ = 772997562209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (773534433421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4349190 + ... + 4523551.

It is an arithmetic number, because the mean of its divisors is an integer number (193385848261).

Almost surely, 2^773534433121 is an apocalyptic number.

It is an amenable number.

773534433121 is a deficient number, since it is larger than the sum of its proper divisors (8959923).

773534433121 is an equidigital number, since it uses as much as digits as its factorization.

773534433121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8959922.

The product of its digits is 635040, while the sum is 43.

Adding to 773534433121 its reverse (121334435377), we get a palindrome (894868868498).

The spelling of 773534433121 in words is "seven hundred seventy-three billion, five hundred thirty-four million, four hundred thirty-three thousand, one hundred twenty-one".