273768666813 has 6 divisors (see below), whose sum is σ = 395443629854. Its totient is φ = 182512444536.

The previous prime is 273768666811. The next prime is 273768666817. The reversal of 273768666813 is 318666867372.

It can be written as a sum of positive squares in only one way, i.e., 241093766169 + 32674900644 = 491013^2 + 180762^2 .

It is not a de Polignac number, because 273768666813 - 2¹ = 273768666811 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (273768666811) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15209370370 + ... + 15209370387.

Almost surely, 2^273768666813 is an apocalyptic number.

It is an amenable number.

273768666813 is a deficient number, since it is larger than the sum of its proper divisors (121674963041).

273768666813 is a wasteful number, since it uses less digits than its factorization.

273768666813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30418740763 (or 30418740760 counting only the distinct ones).

The product of its digits is 73156608, while the sum is 63.

The spelling of 273768666813 in words is "two hundred seventy-three billion, seven hundred sixty-eight million, six hundred sixty-six thousand, eight hundred thirteen".