273726869781888 has 128 divisors (see below), whose sum is σ = 808161052752000. Its totient is φ = 91209919781376.

The previous prime is 273726869781857. The next prime is 273726869781907. The reversal of 273726869781888 is 888187968627372.

It is a happy number.

273726869781888 is a `hidden beast` number, since 2 + 7 + 372 + 6 + 86 + 9 + 7 + 81 + 8 + 88 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 273726869781798 and 273726869781807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4305670 + ... + 23790597.

It is an arithmetic number, because the mean of its divisors is an integer number (6313758224625).

Almost surely, 2^{273726869781888} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 273726869781888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (404080526376000).

273726869781888 is an abundant number, since it is smaller than the sum of its proper divisors (534434182970112).

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

273726869781888 is a wasteful number, since it uses less digits than its factorization.

273726869781888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28099109 (or 28099091 counting only the distinct ones).

The product of its digits is 43698880512, while the sum is 90.

The spelling of 273726869781888 in words is "two hundred seventy-three trillion, seven hundred twenty-six billion, eight hundred sixty-nine million, seven hundred eighty-one thousand, eight hundred eighty-eight".