21274714273 has 16 divisors (see below), whose sum is σ = 22332240000. Its totient is φ = 20239148160.

The previous prime is 21274714261. The next prime is 21274714301. The reversal of 21274714273 is 37241747212.

It is a cyclic number.

It is not a de Polignac number, because 21274714273 - 2¹³ = 21274706081 is a prime.

It is a super-2 number, since 2×21274714273² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21274714973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6078478 + ... + 6081976.

It is an arithmetic number, because the mean of its divisors is an integer number (1395765000).

Almost surely, 2^21274714273 is an apocalyptic number.

It is an amenable number.

21274714273 is a deficient number, since it is larger than the sum of its proper divisors (1057525727).

21274714273 is a wasteful number, since it uses less digits than its factorization.

21274714273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6552.

The product of its digits is 131712, while the sum is 40.

The spelling of 21274714273 in words is "twenty-one billion, two hundred seventy-four million, seven hundred fourteen thousand, two hundred seventy-three".