273488738436 has 36 divisors (see below), whose sum is σ = 691977877500. Its totient is φ = 91075995648.

The previous prime is 273488738431. The next prime is 273488738521. The reversal of 273488738436 is 634837884372.

273488738436 is a `hidden beast` number, since 2 + 7 + 3 + 488 + 73 + 84 + 3 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 226819777536 + 46668960900 = 476256^2 + 216030^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (273488738431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3583261 + ... + 3658788.

Almost surely, 2^273488738436 is an apocalyptic number.

It is an amenable number.

273488738436 is an abundant number, since it is smaller than the sum of its proper divisors (418489139064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

273488738436 is a wasteful number, since it uses less digits than its factorization.

273488738436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7243108 (or 7243103 counting only the distinct ones).

The product of its digits is 130056192, while the sum is 63.

The spelling of 273488738436 in words is "two hundred seventy-three billion, four hundred eighty-eight million, seven hundred thirty-eight thousand, four hundred thirty-six".