273126545320 has 128 divisors (see below), whose sum is σ = 645818572800. Its totient is φ = 103820371200.

The previous prime is 273126545269. The next prime is 273126545339. The reversal of 273126545320 is 23545621372.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100008355 + ... + 100011085.

It is an arithmetic number, because the mean of its divisors is an integer number (5045457600).

Almost surely, 2^273126545320 is an apocalyptic number.

273126545320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 273126545320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322909286400).

273126545320 is an abundant number, since it is smaller than the sum of its proper divisors (372692027480).

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

273126545320 is a wasteful number, since it uses less digits than its factorization.

273126545320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4199 (or 4195 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 40.

The spelling of 273126545320 in words is "two hundred seventy-three billion, one hundred twenty-six million, five hundred forty-five thousand, three hundred twenty".