273864989785 has 4 divisors (see below), whose sum is σ = 328637987748. Its totient is φ = 219091991824.

The previous prime is 273864989753. The next prime is 273864989807. The reversal of 273864989785 is 587989468372.

273864989785 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 212056566016 + 61808423769 = 460496^2 + 248613^2 .

It is a cyclic number.

It is not a de Polignac number, because 273864989785 - 2⁵ = 273864989753 is a prime.

It is a Smith number, since the sum of its digits (76) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27386498974 + ... + 27386498983.

It is an arithmetic number, because the mean of its divisors is an integer number (82159496937).

Almost surely, 2^273864989785 is an apocalyptic number.

It is an amenable number.

273864989785 is a deficient number, since it is larger than the sum of its proper divisors (54772997963).

273864989785 is an equidigital number, since it uses as much as digits as its factorization.

273864989785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54772997962.

The product of its digits is 1463132160, while the sum is 76.

The spelling of 273864989785 in words is "two hundred seventy-three billion, eight hundred sixty-four million, nine hundred eighty-nine thousand, seven hundred eighty-five".