274224865081 has 2 divisors, whose sum is σ = 274224865082.
Its totient is φ = 274224865080.
The previous prime is 274224865069. The next prime is 274224865091. The reversal of 274224865081 is 180568422472.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 191458753600 + 82766111481 = 437560^2 + 287691^2
It is a cyclic number.
It is not a de Polignac number, because 274224865081 - 213 = 274224856889 is a prime.
It is a super-2 number, since 2×2742248650812 (a number of 24 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (274224865091) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137112432540 + 137112432541.
It is an arithmetic number, because the mean of its divisors is an integer number (137112432541).
Almost surely, 2274224865081 is an apocalyptic number.
It is an amenable number.
274224865081 is a deficient number, since it is larger than the sum of its proper divisors (1).
274224865081 is an equidigital number, since it uses as much as digits as its factorization.
274224865081 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1720320, while the sum is 49.
The spelling of 274224865081 in words is "two hundred seventy-four billion, two hundred twenty-four million, eight hundred sixty-five thousand, eighty-one".