273975916421 has 8 divisors (see below), whose sum is σ = 274922159064. Its totient is φ = 273031119360.

The previous prime is 273975916393. The next prime is 273975916429. The reversal of 273975916421 is 124619579372.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3275272900 + 270700643521 = 57230^2 + 520289^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-273975916421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (273975916429) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 19001 + ... + 740481.

It is an arithmetic number, because the mean of its divisors is an integer number (34365269883).

Almost surely, 2^273975916421 is an apocalyptic number.

It is an amenable number.

273975916421 is a deficient number, since it is larger than the sum of its proper divisors (946242643).

273975916421 is an equidigital number, since it uses as much as digits as its factorization.

273975916421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722791.

The product of its digits is 5715360, while the sum is 56.

The spelling of 273975916421 in words is "two hundred seventy-three billion, nine hundred seventy-five million, nine hundred sixteen thousand, four hundred twenty-one".