273897295740 has 144 divisors (see below), whose sum is σ = 841036385280. Its totient is φ = 72146350080.

The previous prime is 273897295703. The next prime is 273897295751. The reversal of 273897295740 is 47592798372.

273897295740 is a `hidden beast` number, since 2 + 7 + 38 + 9 + 7 + 29 + 574 + 0 = 666.

It is a super-2 number, since 2×273897295740² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 5208780 + ... + 5261100.

Almost surely, 2^273897295740 is an apocalyptic number.

273897295740 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 273897295740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420518192640).

273897295740 is an abundant number, since it is smaller than the sum of its proper divisors (567139089540).

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

273897295740 is a wasteful number, since it uses less digits than its factorization.

273897295740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52692 (or 52687 counting only the distinct ones).

The product of its (nonzero) digits is 53343360, while the sum is 63.

The spelling of 273897295740 in words is "two hundred seventy-three billion, eight hundred ninety-seven million, two hundred ninety-five thousand, seven hundred forty".