273490666693 has 4 divisors (see below), whose sum is σ = 273711759820. Its totient is φ = 273269573568.

The previous prime is 273490666679. The next prime is 273490666783. The reversal of 273490666693 is 396666094372.

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 236602470724 + 36888195969 = 486418^2 + 192063^2 .

It is a cyclic number.

It is not a de Polignac number, because 273490666693 - 2³³ = 264900732101 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 (273490666613) 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, 110544708 + ... + 110547181.

It is an arithmetic number, because the mean of its divisors is an integer number (68427939955).

Almost surely, 2^273490666693 is an apocalyptic number.

It is an amenable number.

273490666693 is a deficient number, since it is larger than the sum of its proper divisors (221093127).

273490666693 is a wasteful number, since it uses less digits than its factorization.

273490666693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221093126.

The product of its (nonzero) digits is 52907904, while the sum is 61.

The spelling of 273490666693 in words is "two hundred seventy-three billion, four hundred ninety million, six hundred sixty-six thousand, six hundred ninety-three".