273995026812 has 540 divisors, whose sum is σ = 827452378368. Its totient is φ = 78969945600.

The previous prime is 273995026733. The next prime is 273995026829. The reversal of 273995026812 is 218620599372.

273995026812 is a `hidden beast` number, since 2 + 73 + 9 + 9 + 502 + 68 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 2157441093 + ... + 2157441219.

Almost surely, 2^273995026812 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 273995026812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (413726189184).

273995026812 is an abundant number, since it is smaller than the sum of its proper divisors (553457351556).

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

273995026812 is a wasteful number, since it uses less digits than its factorization.

273995026812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 273995026812 in words is "two hundred seventy-three billion, nine hundred ninety-five million, twenty-six thousand, eight hundred twelve".