273458981881 has 2 divisors, whose sum is σ = 273458981882. Its totient is φ = 273458981880.

The previous prime is 273458981839. The next prime is 273458981893. The reversal of 273458981881 is 188189854372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 246884765625 + 26574216256 = 496875^2 + 163016^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-273458981881 is a prime.

It is a super-2 number, since 2×273458981881² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (273458981801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136729490940 + 136729490941.

It is an arithmetic number, because the mean of its divisors is an integer number (136729490941).

Almost surely, 2^273458981881 is an apocalyptic number.

It is an amenable number.

273458981881 is a deficient number, since it is larger than the sum of its proper divisors (1).

273458981881 is an equidigital number, since it uses as much as digits as its factorization.

273458981881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30965760, while the sum is 64.

The spelling of 273458981881 in words is "two hundred seventy-three billion, four hundred fifty-eight million, nine hundred eighty-one thousand, eight hundred eighty-one".