273669568009 has 4 divisors (see below), whose sum is σ = 273808277316. Its totient is φ = 273530858704.

The previous prime is 273669568001. The next prime is 273669568019. The reversal of 273669568009 is 900865966372.

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 198267153984 + 75402414025 = 445272^2 + 274595^2 .

It is a cyclic number.

It is not a de Polignac number, because 273669568009 - 2³ = 273669568001 is a prime.

It is a super-3 number, since 3×273669568009³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (273669568001) 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, 69351694 + ... + 69355639.

It is an arithmetic number, because the mean of its divisors is an integer number (68452069329).

Almost surely, 2^273669568009 is an apocalyptic number.

It is an amenable number.

273669568009 is a deficient number, since it is larger than the sum of its proper divisors (138709307).

273669568009 is a wasteful number, since it uses less digits than its factorization.

273669568009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138709306.

The product of its (nonzero) digits is 29393280, while the sum is 61.

The spelling of 273669568009 in words is "two hundred seventy-three billion, six hundred sixty-nine million, five hundred sixty-eight thousand, nine".